Hey I don't know if you've thought about some sort of tweak to the minigame for fixing the mansion, but my biggest complaint with it currently is the fact that you have to decide how to spend your upgrade points on your frat brothers BEFORE you can see what the requirements are to clear each room. So you end up having to guess what stats you need and then reload and try again if you guess wrong.
I'm not sure what the best way around that would be. I wound up just writing down the requirements for each room and putting them in a text file that I can alt-tab out to look at while I'm spending my upgrade points. If there was space to do something like that on the same screen as the upgrade (sort of like you did with the mini games for the English tests, I think that would help a lot). Anyway just an idea.
I found that unless I optimize how I spend my points properly, I can't complete the mansion upgrades by the deadline. So guessing is not an option.
Edit: I didn't notice the mansion money cheat so that's an easy solution already in place. I don't think it's supposed to be possible to finish the mansion yet anyway. If you do the guys comment about it feeling like it's cheating. There's also a note at the top around that time that says you have 2 more weeks to do it.