Here's something....
I just did a quick surf of the net to get a price for a Craviotto bop kit. I found a YouTube video of a guy describing one..and the bass drum was, in fact an 18 X 12...and he referred to it as a "Jazzette-style" bass drum.
Anyway...I didn't find a price on the video, but on another forum a guy priced one and said it was priced at $7100.00 -no hardware package, no pedals, no cymbals, no mojo, no historical significance. It was a nice drum set, but it wasn't the kind of cool drum set this Jazzette is. -my opinion, of course.
I guess my point is that there must be some kind of market for bop drum sets that are priced in that range -otherwise, Craviotto (and others) wouldn't be going to the trouble to recreate them -and at essentially the same price range that some people are referring to as overpriced in regards to this Jazzette -the very drum set they are trying to mimic (and never will).