I bought my first motorhome (used) in 1995 ... one of the units I looked at was a used class C Mallard ... the company had quit making motorhomes a few years before that ... it seemed to me to be similiar, in quality, to Tioga, Itasca, Winnebago, Jayco, etc ... from that vintage.
We did not buy the Mallard because we found a Jayco with a floor plan that we liked much better.
The care and maintenace of any used motorhome (and certainly one from 1986 ) will be very important as you make your selection. That will me more important than the name painted on the outside ... in that era they all start with a chassis (probably Ford or Chevy) ... and stove, refrigerators, hot water heaters, etc. that are made by a small covey of manufactures ...
2004 Winnebago Journey 39W - 2012 Buick Enclave
Present @home Home: Oshkosh, WI
We call our rig "Ernie the Journey"