Pete, might also want to review the DMV inspection,registration and state EPA emissions requirements for kit cars/replicas in PA. Items such as having a Bill of Sale attesting to the year of the block/VIN of the vehicle the engine came from, any emissions testing is based upon the year of the engine block, or year of registration ? , etc .
Also, any pending legislation in PA on the above , probably considering the Cobra build would not be completed until a future year.
The Registration Forum on Club Cobra:
http://www.clubcobra.com/forums/registration-forum/