What's required for to build a keep?

[Saracen]

This economic model is just ruining the game for me. Perhaps I can do my own editing. I see three files in the startpos directory. I assume the hellenic_cl.txt is classical, pcl.txt is proclassical and da.txt is geometric? Is that correct? I see inside those files something called "setTreasury" which I assume is the amount of start funds that I can reduce drastically. I also see regional attributes that shows a column called "income". I am assuming that is the base amount of farm income which I could also reduce. Am I correct in all these assumptions? I see something called setimportpercentage which I changed from 20 to 10. I assume that will reduce the imports by 50%. I am going to reduce the treasury to 10% of the current amount and reduce the regions to 50% of their current income to start, just to see what happens. I am hoping that a rduction in the economy will reduce the army sizes which I also think eventually become to large. We shall see.

Also I looked for the Egyptian warship to make adjustments to its stats. Anyone tell me where I can find that. Thanks to all for any assistance.