the h1"s are 37" no? 37x12.5x16.5 MTR/k "military version" about 700$ each E 10ply plus Kevlar rated and stiff as he!!. unless you are running around in a 8k pound loaded out hummer. on a jeep you could run them at 0 psi with double bead locks. I seen a thread here with a guy that has this set up.
I would get a set of 15" rims they are cheep(45$) then 35"s are cheaper too. even mtrk' are only like 230$ or get over priced 16.5's