Texas ASVE Title and the VTR-63 Form?

[SSSammy]

This is a really narrow question. I expect there are a couple people in TX who have gone through the new title process with a NEW ASSEMBLED VEHICLE, not previously titled, and used this form.

I have been parsing the recently published ASSEMBLED and REBUILT VEHICLE MANUAL so I can prepare the mountain of evidence needed to title a new GT40, built from a rolling chassis manufactured in South Africa.

One of the pieces of evidence is a "VTR-63 Component Part Bill of Sale" - which is required for the motor of the vehicle. My question is: Did you use this form for your brand new motor? The form implies that the component came from another vehicle, and asks for the old car's VIN and the signature of the person who sold it to you. How did you fill that out for a new aftermarket purchased motor? In the past I have used the engine builder's invoice to prove ownership of the motor.

Sam