I recently had a need for BC308 transistors. Of course those have been
unobtanium for quite some time.
My search beyond a distributor then went to eBay where I found Unicorn
Electronics.
More to the point I see from their website Apple 1, Apple ][ and Apple 1a
Kits along with Apple 1 and Apple II parts are available.
I thought some here might find this useful.
https://unicornelectronics.com/
Don Resor