I want to buy a car without a catalytic converter, no turn signals, and without seatbelts!
Go out and buy a 1964 Corvette. They are about $50K in decent shape. With a 4 speed transmission and small block(327) V8.
You will also get an AM radio, drum brakes, a carburator, crank windows, no AC, points, no electron ignition, etc.
One of the guys in my office has one. His wife bought it for him as a 25th wedding present. It is now worth between $45-50K. His interior needs to be totally redone.
IMHO, a late 1980s SL550 Mercedes would be better.