I sprayed a Rustoleum paint job on a bus, and it's good so far. Well, what I got finished is. I only got about one coat on too. Too much bus, too little time, too windy most days to continue. I started first with a roller, but it was terrible, so I sanded it down and borrowed a large airless sprayer set up. Works well, but a huge PITA to clean. I think I will try with a wagner type sprayer next.
You are on the right track, in my opinion. It's not a show car, it's a jeep. Might as well paint it with something easy to touch up, available at any Menards, and inexpensive. There is enough color possibilities for me.