I think the tow rig is a good way to go. My daily is a '16 Silverado, during the summer I split it about 50/50 with the TJ. When I take the fam on wheeling trips farther than an hour or so I way I always pull it on a 16' carhauler. I prefer to do it that way because it's a more comfortable way to get to the trailhead and if something breaks on the TJ I just have to worry about getting it back to the trailer. Or bail entirely, get the family home and deal with it later. My truck is just a V8 gas 1500 but it pulls the TJ just fine. On steep grades I just get in the right lane and let all the diesel bros fly by.