First, I mounted the latch to the right side of the seat. I was able to use one of the threaded holes that was for the hinge on this seat. I then removed one of the threaded insert and moved it, to mount my latch. Then I welded the old hole shut.
Now with the seat latching as a F model does, my thoughts were true that the left side of the seat was a bit high. I then cut the hinge down. After making all mods to the hinge and remounting the seat, i think I am good now.
Now on to painting and upholstering the seat.