I found an almost bolt on one for my 52 1 ton.
I know your frame is different, but the point is if you go to a good trailer hitch place, one that stocks hundreds of them you will find one.
Mine only needed the 6 holes drilled under the frame to bolt it on, it was clearenced perfectly for the spring hangers, and was the proper width. I went expecting to buy something to start with and cut and weld from there, I was pleasantly surprised.
I called many of the hitch manufacturers asking if they had one to fit my truck, none of them did, or at least they don't know it.
Grigg