>>8776493I think Maisto does. Probably some other high end brands out there.
>>8776511A little. Some of these cheaper cars from the 70s and 80s are quite difficult to find. There were lots of variations and few survivors. That crossed with low demand makes them fun to collect. If you manage to find what you're looking for, you probably won't have to pay an arm and a leg for it.
Speaking of finding things, it's helpful to look for diecast when you're out of town.