I have collected several KIM_1 and Apple 1 Replica’s. From Vince Briel, Franz Achatz, Dave Williams, Oscar Vermeulen and Bob Applegate (Corsham Technologies).
The KIM-1 replica’s are very close to the original, the troublemaker 6530 is replaced with a 6532 and some ROM, and for the rest nearly original. One even has the same dimensions, the MOS Technology KIM Reproduction. With the cards made by Corsham Technologies I now have dream KIM-1 computers, even my original one!
The Apple 1 replica’s replace the video circuit (the complicated clever circuit by Steve Wozniak with many hard to get parts) with a modern microcontroller and a PS/2 keyboard.
Photos, schematics, user manuasl, software, ROMS, all of my archive here:
Yes, I think there’s a serial number written on the PCB - I forgot, I haven’t used it the last year (I got the kit and built it while I was living in Japan).
Edit: Ah, yes, exactly where that arrow down to the left is pointing in this picture: http://retro.hansotten.nl/wp-content/uploads/2021/01/R110-DIAGRAM-2048x1367.jpg
Edit 2: Mine is serial 24.
I really like how the MOS KIM-1 Reproduction board has its its components laid out logically, much unlike the other reproductions. Arguably, it does even a better job of this than the original (owed to modern PCP manufacturing.)
Also, nice image alignement on the MOS KIM-1 Reproduction page (the two images of the cards at the edge connectors aligned vertically along the ribbon cable).
