Just noticed what appears to be a very nice looking 87 Newell 40' with a 475 HP 8V92 for sale at PPL in Houston, Texas
http://www.pplmotorhomes.com/diesel/12446.HTM for $46,995. I don't know anything about the unit, but the photos look good and it certainly appears to be a very good price.
(I have no knowledge of nor interest in this coach, just thought someone might be interested and PPL rarely has a Newell so it isn't a place most would look for one.)