Yeah, this was just a stupid mistake from us and now we have to deal with it..
I think I want to sim out our odds when it comes to clearing the whole stack of suttree. If our first roll is good, that might be the best option. We have 5 bowmen + a warrior to do the job. The most likely outcome should be losing the first 2 battles, but then killing those 3 units.
I don't have time to test this just yet, but suttree always plays so late that I think we can still take some time. Of course it would be nice if TBS just moves his chariot away, but we can't count on that.

I don't have time to test this just yet, but suttree always plays so late that I think we can still take some time. Of course it would be nice if TBS just moves his chariot away, but we can't count on that.