I can say that building my 6.0, I sure wish I would have gone with a custom tube frame rather than use the Fiero. I kept the tub on the Fiero and that was basically it. Seems to me like a wasted a lot of the original car. Right down to the wiring, pretty much everything but the basic tub and the 5 speed transmission, and a hand full of small bits and pieces were used. I honestly think if I started from scratch, I might have had this thing done a little bit sooner. Of course that all comes with a price. I think in my haist, I also removed most (if not all) VIN numbers in the process so that may be fun when it comes time to register in a month or 2. I did manage to sell a lot of those extra Fiero parts on ebay and reclaimed most of money back for the car. Just my 2 cents, and I hope this helps a little on your decision.
