Man, if they are paying $2000 for this, I need to wash mine and list it on ebay.

This one is #1024, built in 11/76, and is the only other one I've seen so far with a pastel orange/tan color combo on the Blazer, like the #0661 seen in this older thread. This one has the '77 model year camper on it while the #0661 was a '77 truck with a '76 camper on it that we all assume was factory installed.
Yep, both of the pastel orange ones were '77s, their VINs check out that way as well. For some odd reason, the #0661 ended up with a '76 camper unit on it, pointing to some inconsistency of assembly at the Chinook factory.The side of the truck that still has chrome trim on it, the center of the trim is yellow which was '77 only..