Sounds backwards, but if I were doing a rare high $$$ resto I would request single stage everywhere and let the minor flaws and orange peel stay.

The contemporary base-clear paint jobs that are glass smooth are not even close to what production cars looked like when new. They do make the factory oem paint jobs look like crap, (because they were crap done by guys in a hurry).

If you want to knock people's socks off with a perfect paint job at a local car show & cruise then the base/clear system is the way to go.