I don't fully get the reason for this project. Does it consider that you (or your community) will build a computer from scratch? In that case OK, I don't know enough but I guess an 8 bit simple computer makes sense, as long as it's something you can build using cables, LEDs and a breadboard.
If the idea is that you gather already manufactured parts, wouldn't it be better to just use some cheap SOC computers like the Raspberry Pi? They're low on power consumption, so powering them wouldn't be much of an issue, and it has greater, easier to use, software.
It would also allow you to have things like a copy of useful Wikipedia articles, videos, photos, etc.
Maybe I'm misunderstanding the project goal though.
If the idea is that you gather already manufactured parts, wouldn't it be better to just use some cheap SOC computers like the Raspberry Pi? They're low on power consumption, so powering them wouldn't be much of an issue, and it has greater, easier to use, software. It would also allow you to have things like a copy of useful Wikipedia articles, videos, photos, etc.
Maybe I'm misunderstanding the project goal though.