First a worker allocation note: That shield-grassland in the upper left is taking production away from Sixchan, and the worker should be moved to one of the other two shield-grasslands in the lower right.
As for production, I think a courthouse is what it needs. It already has a temple AoA, and for ren et al if we build Leo's, which is the plan, then our phalanx will be upgraded to pikeman free of charge because this is civ2 and not civ3.