Class C I am considering for first purchase - advice?

You Will want to replace the tires and should be a consideration as part of the deal. Check around all the roof vents for signs of water spots and damage. You should go to nada guides.com and get an estimate for low and average retail for the mh. Gulfstream is as good as most. Also try a search on rvt.com and see what others are being advertised for.