Rudimentary search seems to confirm my back-of-the-head impression that Kaymar is in Australia? That, combined with vendor profit margin, would explain the high consumer cost.
It's entirely possible that their specific dims combo is something not found in the States, but is found in AUS. For a production item it would take a very compelling set of reasons for me to not buy something off the shelf & preferrably be a very common dims set so that I'd have a choice of vendors. Can never build it for close to what you can buy it for. The economies of scale just aren't there for a bumper mfg.
I really liked what Rob Gray did for a second spare on Wothehellizat II:
(Page link) Though not quite as easy to use as a fully functional 2nd spare.
Somedays im torn and want to toss it inside and bolt it down.. other days... i feel it does just fine. The only problem i have is the amount of weight back there already on the bumper.... not so much the departure angle.
