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: