Welcome to the group, someone will answer your question, I have read a lot of people are getting tractors, like a Volvo or similar and getting it register as a RV and pulling their Trailers with them. If I was going that route that is what I would do. Driving my Freightliner/Renegade is so easy and it pulled the mountains last year in Colorado, even went to Leadville. The temps were a little higher and the turbo worked more, but with altitude in the 7-9000' and I weighted around 36,000 pulling a jeep liberty. I am ready to go again!
2005 Renegade #1204 42 footer Columbia M3200CH-435,12 speed auto Cat 12 kw Genset, Roadtrip Mission in-mot Dish Network, Washer dryer combo, Jeep Liberty toad,1973 Cessna Skylane,1955 Chev 210 Belair survivor