What bed came original with these trucks mine currently has a 12 foot with a large hoist and want to put it back original any suggestions?

 

Your truck may not have come with a bed on at all. It was not uncommon to order large trucks like yours as only a cab and chassis. Adding a flatbed or platform/stake from the factory would have been an option. Most of those were converted to some other service, grain bed, tanker, etc., after purchase. So it's possible yours is original, as is. Pics?