So I emailed them and they pointed me here:
Titling and Registration a Revology Mustang | Revology Cars
They have two ways: First is a ground up replica that has the same handling as any other replica, and we both referenced the Cobras. The other way is they can start with an original 65 car, strip down to frame, preserving the original VIN. They recommend the former but say they use the latter for most deliveries outside the US.