Read a few posts where people have been looking for these. I stumbled across a for sale post on EP for a super camper Quigley that had them and sent a note to the shop that did the work. They said no problem to make more but you have to go to the shop in Salt Lake City, or send them your measurements.
Just wanted to pass the info along to anyone on the hunt...
Photo here:
https://ibb.co/hZbDrtb
Agility Customs in Salt Lake City is the shop
https://www.agilitycustoms.com/
The guy I spoke with is named Ryan
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The Expo portal post is here (looks like some good upgrades on the Quigley setup):
https://expeditionportal.com/forum/t...-parts.213982/