These look awesome, definitely in for one IF you can get a UK vendor to sell this. Tried to contact you on Discord but I can't seem to add you as a friend for some reason (it says the username you provided is invalid?). Anyway, I was going to ask if you would consider asking prototypist or mechboards to be vendors (I can put you in contact with them if you don't already have their details).
Look forward to seeing this GB happen!