I have the DEMCO AUTO Glide hitch which I purchased new last year (2018). This works great for my needs towing my Cedar Creek 34RL with the TrailAir king pin box. One of the reasons I purchased this hitch was the fact that the hitch will mate up to the king pin box without a capture plate.
I would also contact the manufacturer to see if they make adapter plates that incorporate the FORD puck system. I know that they make adapter plates for the Ram puck system.
2016 34RL CC; 2008 Ram Mega Cab 2500HD, 6.7L, 68RFE 6 speed, 4X4, Smarty S67, TDR 135K+miles