Old school geek here with a love for mech keyboards. Hopping in to hopefully get some questions answered and show of planned mods
I currently use a thermaltake poseidon Z on my main hom and work desktops but the key press is a little light.
I have a focus fk-2000 plus I found a year or two ago, but have never modified the AT to work with USB.
I just scored a Model M from a goodwill outlet store for about $3. It was very dirty, but after a light cleaning it works great. I do not know the exact model, as the sticker is gone from the bottom. I will be posting somewhere to ask for ID help soon. I plan to mode it with backlighting and fully refurbish it.