A word of caution on some of the RV parks -
Some are very very picky about what you do there and the hours you do it, such as working on vehicles. Some strictly prohibit it. Some do not allow pets or have very stupid rules, such as your dog must be on a leash that is attached to YOU at all times, not something like a tree. Others don't allow any outside visitors that are not paying to stay at that park. Be sure to read their rules and make sure it its someplace you want to stay.
Moab Rim where most of us stay are pretty relaxed, especially when we make up atleast 50% of their current guests. Slickrock (where most of us used to stay) is a fantastic piece of property, but they've let the structures go completely to crap and their level of caring got lower and lower each year.