I’d be down to do trading over KT for sure! I think the smaller, tighter knit community would make for mostly very trustworthy & stress free interactions compared to the bigger platforms. Also, we’ll have to hear for sure from the mods, but I don’t think it would pose any issues to start a trading thread as they already allow sales threads. Just not sure if they would want us to keep it to single posts in the Marketplace category like is done now or if they’d be ok with a thread for it to be started? In any case I really like the ideal of getting the marketplace on here a little more active. I would for sure check here first before anywhere else if it got to having daily posts like r/mm or GH/DT classifieds!
As for what you are looking for, personally I’ve only seen blanks as far as 1.75u artisans goes (although I’m sure there are a few sculpted ones out there). 2u though has some more offerings as far as sculpted keys goes. What comes first to my mind is BoomSnap! caps Kelorean backspace artisans for 2u.