Thank you all for your advice. "To good to be true" may apply here.
I believe I'll pass on this one mainly because the salesman I've been dealing with (or the owner of the coach) have been telling stories that aren't supported by the facts. Salesman said it was not a salvage, just a problem with odometer (Arizona box C). and that it was due to a clerical error in Arkansas. Car-Fax shows that it was totaled in 2009 and has been run through several states since then. "Rebuilt Title Issued", "Not Actual Mileage Title Issued" in most cases.
If they had been straight about all of this up front, maybe we could deal. Again, thanks to all.