Whatever you get, I'd make sure it is hot swappable. I can't stress how much I hate tearing the whole keyboard apart to desolder and replace a switch.

My current keyboard is an E-Yoosa I found cheap at a bin store, and I swapped the switches for Glorious Pandas. I love it. And the whole build (keyboard, keycaps, switches, and damping o-rings) was under $100.

Yeah, so keyboard -> hot swappable. If you get keycaps, PBT is a nice feeling plastic. Double shot if you can mind the price. O-rings aren't necessary, but they really do change the sound and feel. They are available in a variety of diameters and durometers. I'd say do some research into those if youre interested.