Re: f 150 5th wheel towing
The very first thing you should do is investigate the trailer weight in relation to your truck's Gross Combined Weight rating.
This is to see if you would be overloaded, then address the bed fifth wheel mount.
The GCWR varies per year, engine, trans, gear ratio and tire size.
Best to look in an owner manual for these limits.
You may be interested in stepping up an F250 if the weight limit is to close.
Pay attention to bed length and fifth wheel overhang clearance with the cab, on turns.
If you don't have either truck or trailer, now is the time to look at these things and don't let a salesman sell you something just to get a sale and leave you stuck with a purchase that is not a proper match for you needs.