[Funky61]

I think whichever region of the states you choose, try to find ahead of time, the largest, biggest car show/swap meet you can find.

I recall the first time I went to the Pomona Fairgrounds, located in southern California, I got to see all the Muscle cars I'd only heard or read about along with street rods, original vintage classics, Low Riders, corvettes, VW's Porsches and all other kind of Oddities and Trucks.
That and along with aisle after aisle of swap meet vendors and rare parts, it made for a fun day.