IF you are looking at a Pace Arrow, you need to look for delamination. While most coaches of that era may delaminate, Fleetwood had a pretty serious problem with it. Not sure when their worst problems started, but pretty much mid 80s into the early 90s, it is a very common problem. Delamination is when the side wall has soft spots that sag away from the side of the coach. This is caused by water intrusion into the wall, which rots the wood luan layer, so the glass skin is no longer attached to anything. You will often see wavy sides, or sagging sides, especially under windows and seams. Some will try to tell you that it is no big deal, but it is a huge deal. Not only does water intrusion mean mold, but it also means that the wall framing can rot/rust/corrode away. I have seen coaches where the whole wall had detached from the base of the coach. The owner had no idea the extent of the problem. If it has no delamination, then it could be from a time period before they started having problems. If it has any bubbles or soft spots, it will be the biggest curse you have ever received - unless you just strip it for appliances and parts to install in the Flxible.