2017 F350 5th wheel preparation package

When I got my current Ram that came with the prep package from the factory I was looking at a completely different truck that didn't have the factory installed prep package. While negotiating on the truck I ended up not getting in the end, I had worked into the deal that the dealer would install the puck system and offered to do it for the same price as it would have said on the vehicle sticker options list of a truck that did have it factory installed($400). I know I was dealing with Ram and I didn't even go that route but point being talk to the dealership and see what they can do. If they can't or won't help check with a different dealership before you totally dismiss the idea of getting what you want