Regarding the Mini M boards, I really wish that Unicomp would customize their buckling spring Model M Spacesaver by removing the number pad, and then cleaning up the upper and lower casing halves just a little bit so that they didn't have so many blemishes, and then put some nice quality keycaps on them. If they'd do that, I'd by two or three of them on the spot because they'd actually have a smaller footprint than the IBM Mini M boards.
Doubtful that this will ever happen, though.