Hi washie26,
Best "First RV" advise you'll ever get:
DO NOT shop for an RV to fit your current tow-vehicle. Go out and find the RV that you want, regardless of what truck sits in your garage. You'll almost certainlty get a new truck in the future before you get a new RV.
There is no need to "start out small" like so many of us do. Unless of course you WANT a small trailer. And there are good reasons for getting a small trailer.
Regardless, buy your dream RV now and then go get a truck to tow it; even if it's used. Check the classifieds, a used 1/2 or 3/4 ton truck can be had cheap, cheap, cheap right now.