Cheap? Mine where $250 a wheel and I have removed the valve core and drove around the block to loosen the tires up a bit. The tire stayed on the wheel with no problem. I know plenty of people running the trailworthyfab wheels with swampers or 40"+ tires and they do great.
That being said, yes they are far to heavy for a d35 ttb. And you can't air down a 16.5" wheel less than ~15 psi without a double bead lock on mil wheels. They don't have a safety bead to keep the tire seated. Also from my experience mil tires are stiff, heavy, and while not bad they aren't to great in any on/off road scenario.
As a parting note good luck trying to balance TWF wheels. Mine would probably need a couple of pounds in weight, and you can't use rim weights.
Sent from the road while ignoring traffic