Get a good walkthrough. When we bought ours the guy took about 4 hours. Covered every switch, each and every piece of gear. Went through all the manuals. He was excellent!!!
Google Pre-delivery checklist by Tom Boles. Fairly comprehensive list.
http://www.angelfire.com/trek/buenavistas/
Needless to say, get everything in writing.
Welcome, lots of good, very knowledgeable people here.
