69' bh29m

I know for a fact that the red 440 IS NOT all original sheet metal. I was just wondering about its current owner because i bought an original document for the car off ebay, from the owner that gave it up to the restoration shop, he then sold alot of NOS and good parts that he didn't give with the car. I would sell the current owner the document for what i paid.
If you don't know me by now on here or Moparts, i took over a '69 M-code 'cuda ONLY registry about 6-7 years ago. There just over 100 cars at this time. The blue pictured car is in my registry.

Did the red car have the buildsheet and numbers motor? Is it not a good indication of M-code restored value?

IIRC, there were two M-code cars that owner had before the red one got restored. Is that correct?