Hello Chris,
I do not have a used SPF but a used '92 Lonestar Classic.
Everything was pretty much the same with any uased car except for the car registration under manufacturer read ASVE
(assemled vehicle).
The emmissions is a different story, that I solved by using
a show car exempt affidavit, You may aquire one at your local
air emmission office.
BUT you have to ask for it,
they don't like to readily hand them out.
Good luck
Arcenio