Let's say one goes with 4wd. I want a pretty loaded SMB, but will all that gear (microwaves, generators etc) hold up off pavement? I am not planning to cross the Mohave, but I don't want a few bumps to cause half the gear to break...
Crossing the Mojave is really quite easy and smooth!
But, I know what you mean. I, and others here, have pretty well equipped rigs that we take to some rough places. The main component that will notice the bumps and shaking will be you. Everything else is pretty well bolted down. Granted, something sometime may loosen up or stop working, but not enough to worry. Read all the posts here you can to see some things we've done to shore things up.
You learn were to shove towels to tighten things up. So far the only damage to my interior has been the carousel in my microwave stripped out. Now not only do we store dish towels and paper towels in there I pull the glass plate out and sore it separate when going off road.
Quality doesn't come in a twist off