OK - when I worked through this yesterday, I tried to think of the least boring way to share my thoughts. I'm not sure this satisfies, but I did have fun mucking about, so I guess that's good enough 
1. General Thoughts
I'm now inclined to agree with Ichabod that selecting fishing next turn is best. The city sites due east and west are so lush - I believe we can settle both - that I think it costs too much to take an early swipe at Borsche. A single shock-impi ambushing a single warrior in Borsche's capital would of course be ideal, but Borsche ought not to let that happen. In the spirit of casual, I guess I prefer to play against "ought" instead of "not".
I put Gawdzak on a T30 settler at size 4, so I think we can settle west. The city is slower to start, but I think west then east is most likely to be successful. We may have to research archery in case Gawdzak settles on copper and rushes military.
I took screenshots of a peaceful playthough where we settle west. I chose to illustrate this option because it's easy to see how it can be tweaked to speed aggression: ikhanda first instead of work boat, whipping instead of growing on to a resource. The east-west symmetry means we need only mirror worker movements to settle east.
Here is an overview map - my best attempt to show the situation at a glance:
Here is a turn by turn summary:
T25
*Grain is farmed, so work it
*Warrior heads west to scout city site
*Worker A heads west to chop one forest in to a settler then a second forest in to the second city
T26
*Worker A starts chopping
*Worker B will chop a forest in to the first settler, a forest in to the second settler, than a final forest in to the third city
T27
*Grow to size 3 - start the settler
*Worker B starts chopping
T28
*First chop is in
T29
*Warrior needs to do his best to prevent Gawdzak from camping copper
*Worker A moves to chop in to the west city
*Second chop is in
T30
*Settler is out, settled T32
*If copper is safe, warrior should set up a scoutpost
*Worker A starts chopping
*Worker B moves to chop in to second settler
T31
*Fishing is in
*Overflow finishes second warrior
*Second warrior sets out east
*Worker A cancels his chop, it will be assigned to the second city next turn.
*Worker B starts chopping
*REVOLT to slavery
T32
*Settle second city and queue a workboat, working the copper forest.
*Worker A chops in to the workboat
T33
*Worker A moves to the cow (the only wasted worker turn in this plan)
*Worker B finishes chop in to the second settler
T34
*Worker A pastures the cow
*Worker B moves to chop in the east city
T35
*Workboat is out. West city works fish
*Worker B starts chop
T36
*Settler is out. ETA on west city is T38. Queue up warrior an grow to size 4.
*Worker B cancels chop
T37
*Note that we might be able to optimize and finish the wheel this turn (exactly 6b short here), so worker B should be able to road while he waits for the east city. It should be clear that his job is just to chop in to the east city and then drop a turn in to a road to pasture the sheep.
T38
*Finish third warrior and grow to size 4. Start on worker.
*Settle east city, proceed exactly as we did to the west.
*Worker A moves to copper. If all goes well, worker A will chop/mine in to the ikhanda and overflow in to an axe finished ~T47.
Again, the idea is to use this as a template and vary depending on strategy.

1. General Thoughts
I'm now inclined to agree with Ichabod that selecting fishing next turn is best. The city sites due east and west are so lush - I believe we can settle both - that I think it costs too much to take an early swipe at Borsche. A single shock-impi ambushing a single warrior in Borsche's capital would of course be ideal, but Borsche ought not to let that happen. In the spirit of casual, I guess I prefer to play against "ought" instead of "not".
I put Gawdzak on a T30 settler at size 4, so I think we can settle west. The city is slower to start, but I think west then east is most likely to be successful. We may have to research archery in case Gawdzak settles on copper and rushes military.
I took screenshots of a peaceful playthough where we settle west. I chose to illustrate this option because it's easy to see how it can be tweaked to speed aggression: ikhanda first instead of work boat, whipping instead of growing on to a resource. The east-west symmetry means we need only mirror worker movements to settle east.
Here is an overview map - my best attempt to show the situation at a glance:
Here is a turn by turn summary:
T25
*Grain is farmed, so work it
T26
*Worker A starts chopping
T27
*Grow to size 3 - start the settler
T28
*First chop is in
T29
*Warrior needs to do his best to prevent Gawdzak from camping copper
T30
*Settler is out, settled T32
T31
*Fishing is in
*Worker B starts chopping
T32
*Settle second city and queue a workboat, working the copper forest.
T33
*Worker A moves to the cow (the only wasted worker turn in this plan)
T34
*Worker A pastures the cow
T35
*Workboat is out. West city works fish
T36
*Settler is out. ETA on west city is T38. Queue up warrior an grow to size 4.
T37
*Note that we might be able to optimize and finish the wheel this turn (exactly 6b short here), so worker B should be able to road while he waits for the east city. It should be clear that his job is just to chop in to the east city and then drop a turn in to a road to pasture the sheep.
T38
*Finish third warrior and grow to size 4. Start on worker.
Again, the idea is to use this as a template and vary depending on strategy.


































- maybe we are the Russians? In that case I propose a rush with two impis. I think it's very likely to succeed:
