Another vote for a Fleetwood Bounder, Southwind, or Pace Arrow. I agree with others who say that the CONDITION of the older RV is the most important factor.
We ordered a dash cover from Blondie's Pit Stop in Colorado. It took about 3 weeks but is a perfect fit in our Bounder. Cost was $239, including shipping. http://www.blondiespitstop.com/