I have for sale a used Reese 5th Wheel hitch, with Reese Universal rails, and frame rails for Ford F250. Lots of bolts, and some extra brackets and stuff that may be useful for it. This is a Slider style hitch, so it can slide back and forth 6 or 8 or maybe 10 inches. It's also height adjustable by a little bit. All in decent condition. Some of this stuff is brand new actually. The hitch I got used, but the whole rail kit is brand new, see amazon link below for more details on it.
I bought this to put on my 1996 F250 Flatbed, hopeing, but the frame rails are good for 2011-2015 F250.
The Reese hitch and Reese rails are universal for any truck, well sort of. If you have a flatbed, this whole setup won't work, ask me how I know. Even if you don't have an F250, this lot at this price will still get you a long way toward your goals on any 'normal' pickup truck. You can buy the specific frame rails for your specific truck separately, so this is still a good value for ANY truck.
Since we are all friends here, I bought this bad a$$ '96 Flatbed to use to tow a 5th wheel. And then bought all this hitch gear to put on it to get setup. Took it to my local RV shop, and they proceeded to show me why this type of hitch can't work on a flatbed. Imagine my surprise, no way in a million years did I think a 5th wheel hitch wouldn't just plop right on a flatbed. The way they mount the flatbed to the frame takes up the space where the hitch frame rails would go, so no dice. Had to buy a whole different thing.
Local pickup, or i can meet at a reasonable distance, say 50 miles.