it would not be hard to get parts.
There are so many aftermarket manufactureres, that you will never have to look very hard for parts.
I would imagine that they would buy the parts and warehouse them for us, and possibly even buy the molds stamping tools, so they can still be remade.
Plus all the salvage yards and junkyards that have them all.
Nothing will change as far as parts or mevhanics go, the real problem is with the job losses, and people will eventually turn to crime for money!