Many of the conversion van compaines went belly up back in the mid 90's.
Try the outfit that purchased out Glaval, Mark III, Tiara, Coachmen, PrimeTime and other van converions. The company is CPC. http://www.cpcparts.com
They purchased out the name brands, tradenames, OEM rights and all of the OEM tooling and inventory.
The only other conversion van company CPC doesn't have is the tried and true StarCraft; The industry leader for the best build conversions.