There's also a 1:1 replica of the Mac Plus mainboard by the same creator: https://github.com/max234252/MacPlus-Reloaded

DosFox posted his progress getting the board to work on Mastodon: https://appleinsider.com/articles/24/07/26/an-engineer-has-b...

Some of the parts for that board are a bit hard to find today. Amazingly, the components that are most difficult to find (at least here in Europe) are the angled 30-pin SIMM sockets…

(I also posted this on the related hackaday comment thread)