Sorry Kenny I never post or respond there. Here is my answer to the question.
It would seem that cab adjustment if standard mounts are used and the cab floor is correct would be the hardest fix. You have multiple fit issues with column, shifter, pedals, brake linkages, etc. The front cab mounts are ridgid points with no fore/aft adjustment only height. If you need to gain 5/8" as shown from your picture I would get it on the bed end.
https://www.flickr.com/photos/advance-design_parts_co/12315088635/in/album-72157640522200463/