Unless you're looking for a chiclet style bluetooth keyboard, I say plan to program. You're better off finding a board you can program with Kailh Boxes than attempting to find mac version of box white.
Then again, if you find a mechanical keeb with any mx switch, you could buy it and desolder the cherry mx switches (assumption based on what is normally available) and solder in some kailh box whites (or find someone on here willing to desolder and resolder for you for a minimal fee)