Finally mounted my Hi Lift up on the Thule bars. Not sure if I'll keep it there or not but it is out of the way & it wasn't that much of a pain getting it up there. I'll likely add a small cable lock so it doesn't get pinched.
Four wheeling in a pickup, I have used a hilift to raise both rear tires off the ground when the axle or frame are on a rock or log (it inserts into the 2" receiver). Once up in the air the pickup is very unstable but it does allow you to shove the rear end over 1-3 feet onto more favorable terrain. BUT our vans are just too heavy for this kind of sport and I strongly recommend against it.
On the other hand the hilift can be inserted into the 2" receiver (or under the winch cradle) and used to take some of the weight off of the axle. If the tires are on solid ground (there is an art to this strategy) you can then use a scissors or bottle jack or (in my case) pull out your 1500# floor jack and raise one end of the axle. All of this presumes that the other 3 tires are chocked and the trans is in park.
I have the Milwaukee 18V impact wrench. It will torque up to about 120#. I use the torque wrench for getting the nuts started and torqued when done. The same set came with a reciprocating saw that I use for cutting downed trees and fire wood. Both are fairly compact and the battery charger can be hooked up to my inverter.
Home Depot carries a "lug" in the electrical department that is for a huge (>00) wire. It has a very heavy zinc plating that keeps it from rusting. The "lug" has a 5/16" bolt you can use to attach it to a flat surface. The open "jaw" is a perfect fit to cradle the hilift rail. It also has a large set screw that clamps down on the hilift rail.