I got it-------------
OP your PU has a square hole in each corner?
Get one 3 foot piece of square tubing that will fit in a front square hole. Mount a boat winch to near the top of this pipe. When your ready to get the deer inside your truck, just drop the winch and square tubing into which ever front hole you like and winch him up.
Boat winches have a long reach and are cheap.




~Molɔ̀ːn Labé Skýla~