Good job on the mod. It's come a long way from when I first found it and it's easily my favorite alongside Phantasy Calradia.
My respectful suggestions follow:
1) Allow players to select (in the mod options menu in camp?) how high rent should go for their tenants. I have been struggling to raise the ceiling on this because as it stands it would take 20 weeks to increase. I modified the text file as you suggest in your original thread but when I put it up to 100 or above, it drastically reduces the money earned (which should be the opposite?)
(fixed this, I had it backwards, lower number in the script is equals a higher payout)
2) When you reach Craftsman or above, I feel like slaves or hired NPCs should be more useful. For example, I have to go pay a lord for the rights to use his mine, ok that's fair. But then I have to go all over the place to buy up pickaxes and then travel all the way back just to mine and smelt all the ore myself? (which is pretty rare) Why not just hire the lower classes (as I was repeatedly told to go cut trees and mine rocks when I was one), such as peasants to do the work? This is especially true for blacksmiths, whose iron ore is not as common as fellable trees (I'm looking at you carpenters).
3) I'm not sure if this is already a feature but I think it's probably not. Would it be possible to implement some sort of counter that ticks up one integer when every faction is above a certain tech level that in turn indicates where a player faction would start? I'm worried that if I don't rush to become a king, I'm going to be fighting muskets with sticks and rocks.
4) (similar to 2 but different area) When building one of the buildable castles (thank you by the way, that's an awesome feature), given how many resources are needed, wouldn't it make sense for the workers you hire to actually get the materials themselves? I mean, I'm bankrupting myself to pay them and they still require me to go out and get tools, wood, etc. All they do is give a +2 points per week (for 40 workers, that's insane!). So: could we allow the workers to either work much faster or get the materials themselves?