Why not keep renting? My son goes on 4-5 RV trips a year of 4 days duration, mainly to Glamis dunes. It is much cheaper and easier to rent an RV. No maint, no storage fees, no cleanup, no insurance, no pmt. Something to consider.
Scott and Liz - Southern NM
2012 Wildcat Sterling 32RL - w/level up (best option ever)
2007 Chevy 2500HD 4dr short bed Duramax w/allison
Reese Fifth Airborne air ride king pin coupler with Sidewinder