If it were me, I'd rent a car for a few weeks first, stay in an extended stay hotel the first month, you can stay for as little as $30-40 per night with monthly rental, you pay no hotel tax that way. This gives you time to get your bearings, and really look at a lot of RV's so you don't make a bad buy in a hurry.
Rent construction tools at Home Depot.
"Rent" automotive tools at Autozone, O'riley's, etc. You basically pay for the tool, and you can either keep it or return it for a full refund. They have special tools for that purpose. They know you will also buy parts.
You can pretty much rent anything in the US, sometimes at midnight...
You may find better deals and more inventory in Arizona. Mesa, Apache Junction. Cheap to live, lots of RV lots. Tuscon too. The weather will be top notch when you arrive.
Bus or flight to PHX or TUS are very cheap from LAS.