I have a 1967 Firebird 400 that I am in need of help on how to restore. The car was driven in CT year round for a number of years and has been sitting since 1992. As you might expect, the car has some rust problems on the rear quarters and in a few other areas on the fenders. Car was originally regimental red with a black vinyl top but has been repainted and paint / vinyl top are shot. Has a rebulit 400 engine in it. Interior (custom) is in fair shape but needs new carpeting, headliner, touch up on some of the paint. Without sounding "sacreligious", how do I know if this is a car worth restoring? I had purchased a number of NOS parts years ago (wheelwell moulding, rocker panel moulding, sill plates, 400 bumper emblem, Pontiac emblems, etc.) and have a number of used parts but don't know if I should just use them for the restoration or sell them off and buy myself an already restored car. Any input would be appreciated. Thanks.