You know I am on EBAY 24/7 and saw this car soon after it was posted. The story of some blocks being stamped and some weren't seems suspect without a professional inspector being able to say so and back it up with factual cars showing the same info. He says the engine is original if it wasn't than a CE block would be in there??? What if Joe Smoe swapped out the block for another 302 like 95% of all the other restored Z cars out there? He doesn't say anything about that.
Another X77 car with X33 trim, no vin pic, no trim tag pic, (wavy) spoiler car but rear deck stripes incorrect.
So at this point all I can tell is it looks like a 69 camaro, but based on the description and pics, I couldn't for sure tell you it is even a real Z, let alone an orange one.