I like a certain unremarkable car from the recent past. As they are repairable currently, can one just buy all of the parts new and put it together?
Are there any parts that aren’t sold new?
Have you done this?
Are there any tools to help one get all of the parts?
Any communities?
Getting the chassis would be hard, usually that’s not a “part”. But you could by a second hand/wrecked car and refurbish it with parts. It will be expensive and not easy, but possible.
Possible is good, and the used market has some candidates…