Bummer, but good for the seller, I suppose. Would be nice to determine if the camper was a one-off custom build that was supposed to look just like an aftermarket company product, or if it was actually a terribly rare aftermarket company product.
I had one person contact me who swore he knew of a GM factory Blazer/Jimmy camper that predated the '76-'77 Chalet / Casa Grande, but all I could point to was the "
Blazer Sports Camper" prototype concept rig. I doubt that what this guy has is a GM factory concoction, but one never really knows.