Fred - the original Moesly Seafari, built in about 68-69 also used bifold doors! Check out this brochure on Carla's web site,
Moesly Seafari The doors appeared to be hinged on each side and opened inward; I think I'd like that arrangement better than the one-piece door which is in way of driver when it's open! The two smaller doors really would not block much when they open into the cabin, although I wouldn't be able to keep both my small cooler and tool box there like I do with 1-piece door. Looks like some sort of barrel or slide bolt was used to keep the door latched closed. Why don't you just come to the Ft. Desoto gathering and ask the Master Designer what he used?! Denny