Give Walt's Rv a try. They buy lots of surplus from Fleetwood. Their address is:
WALT'S RV SURPLUS
16616 Valley Blvd., Fontana, CA 92335
(909) 823-0563, FAX (909) 823-8515
New/Surplus RV parts. Specializing in Fleetwood, as well as National and Cobra RVs.