Newbie Looking at Class C 1999 Minnie

That rig is getting to the age where coach condition is more important than mechanical condition. Look for evidence of delamination and leakage. Those aren't necessarily deal breakers, but those types of problems are usually more extensive than what the eye can see. You likely have a 480LE overdrive auto, with the 7.4L (454) V8 you won't know you are towing anything. As far as the range, most of those had a piezo ignitor, if it doesn't work it's no big deal to light with a match or lighter. The most expensive appliance (and most likely to have problems) is the evaporative refrigerator so check that thoroughly.