Update time! This past weekend we machined and welded up the parts to allow a quick release jack stand system for our flatbed camper. The plan is to store the somewhat heavy jackstands off the camper while traveling (probably in a rear compartment under the flatbed). I also wanted fairly wide wings to space the jackstands away from the camper so I didn't have to sweat bullets each time I backed up the truck. The camper is 8'4" wide and the flatbed is 8' wide. With these mounts the jackstands will be another 6 inches from the camper, giving us 8 inches clearance on each side of the flatbed.
It takes about 5 seconds to install each jackstand and insert the cotter pin. I machined the 1/4 inch plate and 0.2 inch wall 1 inch tube on my cnc mill (going to miss having that on the road) such that everything was a precision fit. I still used 1/32" oversize ID tubes on the receiving end couplers to give a little slop :-).
Seems to work like a champ (The jacks are rieco-titan models) of course the camper is still just a steel frame right now.
