They are epic boards!
Anyone curious about an HBCP build should check out @jshuf’s build for a cool build log of the HBCP.
My personal plans? Probably going to go with lubed inks in a FR4 half plate. Trying it mostly because I haven’t seen anyone else try it so 
it’s good. Worse case scenario I just desolder and rebuild it up with the brass plate which seems tried and true for everyone else.
No clue what keycaps I’m going to rock on the board yet tho 