You certainly make your points well. I think Alucard's post about his mother's memories of the figure was fascinating. It totally jives with the images the Fowler's have. There is a little card thing that has a mail in offer for something Barbie, something troll doll like, and MOTU, represented by Man-E-Faces. If that ffer wasn't for this figure, what was it for? Where are the recollections of that offer?
I can totally imagine Wonder Bread not being involved. I have heard theory that the confusion of Wonder Bread comes from the MOTU cards that came with loaves for a spell. I also saw a lot on eBay once where the seller described the figure as coming from a promotion of Sunshine Soap, a company I have never heard of. He claimed to even have called the figure "Sunshine" because of it. I certainly having to **** my head at a child naming a darker version of the He-Man figure a name more suited for a cohort of Sir Hugs-A-Lot, to reference the same era.
I would certainly be careful when buying one from eBay. Personaly, I would balk at any thing worth $100s that the person hasn't put forth effort to make clear large pictures of. If I ever sell my Mail-Away He-Man, I will have supr close-up shots of even the soles of his boots.
I certainly would not put my money on any specific origin for the figure, but don't doubt that the figure itself is real. I love toys, and my brothers are professiponals in the toy sculpting industry, so I take note of production values and issues. This isn't repaint on my figure. His torso is a different tint to the 5 other variations I have of the He-Man figure. I am trying to sort them out if any experts can help!
If nothing else, it provides us with much material for discussion and conjecture and research; al joys to the collector's mind.