I've got an impact wrench that I use to take tires on and off with at home, using thin wall deep well sockets.
I also have a set of torque extensions. These are extensions that are manufactured to bleed off torque from an impact gun at a set level.
So if you want the camper lugs at 100 ft#s, choose that extension. First, loosen the lugs a little with the impact wrench. Then insert the extension and tighten in a cross-lug pattern.
Super easy, no fuss and no muss. Works equally well with pneumatic, electric or battery operated impact wrenches, but not manually.
Besides, there's that satisfying BRRRRRR every time you pull the trigger on an impact gun!