While I do not know about a Vintage "roller", I do know that Carey at Special Edition, Inc. has Spyder "rollers" ready for engine install in stock now.
These are painted, upholstered, wired, gages, .....everything but your motor. Even comes with top, side curtains, leather interior (installed), Literally everything you need less the motor.
You have to specify (or supply) the transaxle setup you want.
He is a sponsor on this site, and can be reached at 574 546-4656.