A switch is just a method of connecting two pins on a controller chip which doesn't know what type of switch was used or if it was just a bit of wire, all it knows is that the connection has been made - this means you can use any switch you want.
Depending how the switches work physically you may have problems with chatter which would be the only thing that could make a keyboard unusable. There are debounce settings in existing keyboard firmwares which may or may not be good enough - you're the 'expert' on these switches so wire one up without a PCB and see what
Aqua Key Test makes of it