I agree with Joe, car #2 is simply a clone - the soul is gone. The original drivetrain is very important to me, second only to the original car's 'soul'. I don't care how much sheetmetal was replaced, as long as the orig. shell was used. The scenario of using the 6cyl body to dup the spot welds etc.. is simply a copout to save money. You save the bad cars with extra amounts of work/money because your hearts in it - not because of the payoff.
I might add that richschmidts %'s are bit off, it's more like 10% of the supercars are in this bracket as opposed to 90%. I have personally seen many unrestored supercars that were in very good condition. I also know of many more that are doing just fine, are unrestored, but the owners just want them left alone. So, there are quite a number of unrestored supercars out there that have never seen a muddy dump! I'm not tellin you where though
