There are aftermarket kits that you can buy. but I still would go with some doors from a junkyard and swap everything out. Just think about replacement parts a vuple of years from now when you need a window motor or door lock actuator. You will be able to get them for the factory stuff, but I dought that you would be able to for the aftermarket kits without buying a whole kit again.
that is what I would do, but it is your truck and your money.