I'm Gabriele "asbesto" Zaverio from Palazzolo Acreide, Italy! We at our Computer Museum started this project for building a replica of the famous Apple 1. I'm in contact with Mike Willegal and here I am greetings everyone here for the great amount of data in this forum!
We are in the process of searching all components; our restoration lab have a lot of vintage TTL and other parts so very few of them are missing.
About the keyboard, I have found this article here:
Maybe can be useful to hack any kind of ASCII keyboard into one that fit the Apple 1?
Greetings from the sunny Sicilia