walletta
King
You had better focus to the war. Start it as early as you can to limit expansion of the AI. If my first town is a good settler factory, my second town starts pumping archers right away. Research iron working fast, so that you can take down all towns that have iron. Build lots of catapults.
Place your towns 2 tiles from each other, build barracks, then build troops. I don't know about Monarch but on higher levels the AI will build towns (in place of the razed ones) fast enough so that you don't have to build any settlers to fill the gaps. You don't need infrastructure in your cities, sheer amount of towns makes sure you don't need to pay unit support and can afford running with 50% luxury if necessary. After iron working and mathematics I don't research anything.
Conquer the ToA if you can, you only need to hold it for 5 turns to get all your cities to fill 21 tiles. The shields you need to build it are best used to build military.
Clearly, I am not ruthless enough! It is quite a novel approach to the game to just try and knock everybody out without fannying about building stuff. Quite good fun. I'll stick at Monarch for a bit then go up to Emp and try it there. The Temple of A is a bit of a drain on resources, you are right. I got it free first time round with a GSL but have since been building it the hard way. I'll stop doing that.
Quite annoying is that every map I get turns out to have horses bloody miles away!