Thanks on the autosave, might come in handy. How does it handed crashes on next week? Could be problematic on that issue.
On the gang screen, I've noticed that the Weekly Cost wording switches between Weekly and Daily. Might be a few old references still left in there, switches when you change gang jobs.
On picture sizes: I've noticed that I could possibly get better results if I edit the resolution of pictures to better line up in-game. What would be your recommendations on that aspect?
I encountered my first 'Customer couldn't pay'. I went to the dungeon and encountered a crash when I highlighted "Customer" in the dungeon list. I hadn't saved with the customer in there, however I had an other encounter, this time asking for his daughter, and being refused. I let him go then, and it worked as it's intended. Could of been just a random crash, will test it out further.
I've some thoughts on my play with Gangs, however I realize you've mentioned that they aren't a priority and aren't being worked on now, and might not be for some time, still, just my perspective on them:
On gangs, I've notices in a default configured game, if a player doesn't go after & eventually destroy the original 4, one or more of them become HUGE money wells, that if attacked in the future are very hard to eliminate, while giving huge sums of gold in the process (I completed a mission, and got 370,000 from the last remaining gang, LOL). This I think has been present in all versions I've played, but if you were to look at them, maybe a rejig to make the opposing gangs destroy each other (increasing their turnover so to speak) without any player involvement. They tend to do that but only after the player wipes out the 4 initial gangs from the start. If you leave the initial gangs alone, they consolidate into one or two mega-wealthy stagnant pools.
I was going to mention that I'd like them to be more of a problem for the player, however I remembered that I'm putting all my money in the bank and therefore not attracting them to attack me except if I have businesses. I also tend to balance the price you get for selling girls, and raising extortion income from 10g to at least 50g. (It's always funny when a father sells his daughter....for 10G!)
Crazy: you could consider ULMF (existing WM thread), hongfire (better to make a new one, but older one exists, that's how I found out about this new address) , Nihonmaru (? no experience from me) , LAH (little angel hentai, again, I have no experience with this). That's just the few I know that WM threads are relevant. Toonpimp maybe, no idea, futanari palace maybe? eka's portal (eku?) is vore based on recollection, but hey, maybe there's a general section?