The Apple has landed!
Got it yesterday, fully functional (even wrote a few simple BASIC programs just to see if I remember how):

And that's an Amber / "Taxi Yellow" Alps:

Kind of surprising since it's also an A2S4000 model, not the expansion ROM one... Will check the ROM version when I get home.
About the switches: Best discrete clicky switches I have yet tried! On par with Model F in terms of how much I like them. Very different experience, though. The weight is hard to judge... After trying a few times, switching between my ErgoClears and this I'd say they're quite similar, but with the different force profile it's hard to tell. I don't think the Deskthority values of 80-100cN are correct, more like 70-85 in my estimation. I'll try to do a better comparison / weight test later. The click sounds are nice, deeper than Blues, quieter than Model M and F.
The difference between the hairpin spring switches and these is like night and day. I'd have been even more addicted to my IIc back in the day if it had this board!
One nice thing about the board is that it's modular, so if I make a new case and an adapter I can hook it up to a Teensy and have a nice 60%-ish programmable board running on USB that can be switched back into the IIc without any soldering / desoldering. Should make a nice conversation piece, too
