Thanks again to everyone for your help.
We've decided to pull the trigger and just do it. Life is all about new experiences and I've talked about this trip for years, now is the time to just pull the trigger. Worse comes to worse and the temps really fall for the week we plan to go, then we can always bail into a hotel.
After researching it, I've found some campsites in non-commercial campgrounds. All of these sites have electrical hookups! Maybe not water, but def. electrical so we should be able to run the furnace blower all night.
Our basic preliminary itinerary is as follows:
Plan on picking up the RV on a Saturday. Still trying to decide which rental company between CruiseAmerica, El Monte and Roadbear.
After we pick it up, plan to get on over to the Spring Mountains just outside Vegas and camp at the Fletcher Campground for a night. Next day will pack up and head to Zion (we've been before) and spend 2 nights at the Watchman campground with electrical.
Then head over the Escalante. Wife is thinking of breaking this up with a night in a hotel here (so we don't get too sick of each other), versus staying at Petrified forest where there is electrical RV sites available.
Then over to Moab for 2 nights at Dead Horse to hit Arches, etc.
Back to Vegas with 1 night stop over in Snow Canyon outside St. George's.
More newbie questions:
1. Assuming we run the furnace to keep the cabin toasty at low 70s overnight (with an outside temp averaging in the 40's), how often do you think we would need to replace the propane tank? I know its dependent on the size, which I don't know of yet as we havent selected a RV company), but in general.
-and where do you fill these propane tanks on the road? Just
like a regular gas grill tank at the gas station?
2. What's the etiquette on how you 'save' your spot at a site you've reserved for multiple nights when you head out for the day?
3. How much of a pain is it to 'decamp' at a site. For example, when we are at Dead Horse, we will be driving to Moab and Arches, and perhaps hitting places for dinner. Is it a huge hassle to unplug and go?