hello!
i registered my ultralite in 2007 just as the regs were changing. currently you will need to go to a body shop that can handle "reconstructed titles". when there you will need to pass all the criteria of the drive train you used. for example, if you have a 2001 miata motor you will need to have everything a 2001 miata has (obd2 scan port, bumpers, mirrors, turns, etc).
i snuck in by registering my 7 ad a 2007 lotus (no model name). someone up in harrisburg was sleeping and i got my title back a ok say LOTUS. i found a friend who "inspected" my car under a dealer tag and since the mileage was under 5000 i avoided the obd2 smog/check engine light check.
i would recommend trying this process first because i cant imagine a 7 with all the hardware your doner car will have.
best of luck,
Roman