downtheroad wrote:
Consider long days of driving and motels for this trip.
I agree with this, especially since you said, "if we decide we like it." That's a pretty big caveat. If you end up with a high maintenance trailer, you most likely won't like it.
Perhaps you could consider staying at campgrounds with cabins (like KOA) or on-site RV rental units for the trip, and then renting an RV once or twice once you are settled in Arizona. Renting will give you a good idea of what RVing is like, and you won't have the headaches of storage and maintenance.