Forrest, Great idea and nice work! Sure beats $300 bucks.
Cost about $40.
Aluminum .058 tubing, 6'-3/4" & 7'-7/8" tubing from Industrial Steel...$6.00
Brackets from Hooks & Lattice...$26.00
1" dia. vinyl hose sleeve from Ace Hardware...$.05
#12 x 3/4" Self taping screws & 5/16 bolts w/nuts...$3.00
Thumbscrew speed clamps for Checker Auto Parts...$4.30
Flattened tubing ends in vise and drilled 5/16 hole for bolts.
Simple aluminum "L" brackets cut 2" long from 2"x 2" "L" stock could be substituted for Hooks and Lattice brackets....save another $23.00
I also installed Bal 7000 lb scissor jacks behind rear axle to take weight and bounce from suspension and tires. The jacks will level RV side to side over two inches without using blocks under tires.
These set up really works................no need for rotochucks, hitch-pin tripod or blocks.....less weight to carry and less things to remove and store.
Forrest