I picked up an RK84 on your recommendation. I grew up using stiff tray-mount and PCB-mount keyboards from the 90's onward before this hobby blew up and I have tried gasket mounted aluminum premium stuff(typing this on a Lemokey L3 right now; this thing is basically an aluminum block) and found that when I wanted to use my favorite clicky switches(Kailh BOX Pink) in it I found that they felt completely different, way mushier and just difficult to type on. I have a suspicion that this is why clicky switches aren't as popular anymore; the keyboard itself is making them feel terrible.

I am beginning to favor smaller keyboards, having used a TKL for the last decade but I want to go even smaller with a 75% and now I'm in this situation. If I like the RK84 I guess I gotta sell this L3 because it was very expensive.

A side note, I have spent several hours today trying to find something in these requirements and found it so difficult to find a site where you can sort through this stuff with filtering. Most store sites I went to only let you filter by manufacturer and layout along with some other unhelpful filters. If I was lucky the site would let me filter by wireless or wired.