I'm fairly new to BK, barely been a day so don't be too harsh but, think it's acceptable to pull some assets from Slave Maker to compile and tag them for some characters that aren't on here yet?
Like Peach etc?
The game absolutely supports girl packs from other slave-games. The issue is that, IMHO, they don't end up working that great. The tagging schemes for other games tend to be a lot simpler than the scheme used for BK. So they are totally compatible, but they do not produce as good of a output as BK-native packs do.
As for Peach, I just glanced at the pack list (linked at the start of this thread), and there is already a BK pack for Peach. It's listed under "Princess Peach", and was done by neme20, who does decent work.