I think Melk could have a little bit more. Expanding his contracts and bettering his offerings is one thing, but I believe he could have more up for grabs: Cosmetics.
SO much stuff is going unused as of now with Hallowette being out of action. A few sets and pieces from her with some reasonable pricing (2k-6k depending on amount of pieces per listing) and permanent availability would be a good starting point.
Alongside this, he could be a good way to bring in new back accessories and poses. There is little choice in both categories, Melk having some options for them would be perfect imo.
I know I already made a post about this, but it’s a pretty good idea, can be worked around (2 week rota, Melk gets new stock 1 week and Hallowette the next, Melk’s more expensive items stay forever due to time needed to earn them) and I dont think anyone would scoff at being able to earn some new drip for their reject!
