Quoted from Frax:
Sorry to burst your bubble but all four sides of that cab are faded. The entire thing should be like the bottom right side of the right side of the body... bright reds.
Agreed and also sorry, but Frax is technically correct on the fade.
Pic below of the bright reds on the original flyer he was referring to plus another example.
But no worries, like he said, you're pricing is completely commensurate with condition on what looks like a very nice overall example.