There's virtually no verbal descriptions for these items and some of the photos don't help much, being mostly white parts on a bright white backdrop.
Take this fuel tank, for example. Judging by the photos, there's some wear & tear, it's not a U.S.-spec color, and the price is $2588 plus $229 (!) for shipping, Pictured below are a few more pricey examples: There's an OEM regulator/rectifier for $454 plus $43 for shipping. How about a used set of 27 year-old coolant hoses and overflow bottle for $488 + $52? There's also a very cool "Endurance" branded exhaust system that is claimed to be an HRC part. The price leaves me cold, though: $2793 + $166. Best of luck to our seller.
(click on an image to enlarge)