[spdbrake]

Rollers, a car that just need engine trans dropped in.
Folks who make rollers
Backdraft start @ $47K, Superformance $65k, Shelby $115k, Kirkham $95k, Other brands can be ordered but are rare and require 1-4 years lead time. Also those are rough barebone numbers from my memory (probably low) and ramp up quick with options.
Add another $20k for the engine and trans. ($15k for the motor and accessories, $5k trans, flywheel, clutch, bellhousing)
I'd advise swinging by Radical Roadsters in Tomball. James Yale has a great reputation and is a Backdraft dealer as well.