Wow, Jim. Thanks for the detailed analysis. The '69 Chevy has always been a favorite of mine, and learning more about the accuracy vs. inaccuracy of available resin products is a huge way to avoid disappointments!
Unfortunately, the resin world is littered with half-baked attempts to market bodies ... and way too many of them are 'close' ~~~ or worse. There's usually too much $$ involved to just buy 'em all, so info like you've shared here is invaluable.
Thanks!