Mustang Seat for 07 Nomad

[pearsom]

I'm hoping someone can help me, I just purchased a new Mustang seat with rider backrest and while I love the comfort, the seat is a poor fit. It seems to want to go under the tank however when seat is inserted properly near the tank the bolt hole & mount are out about 1/2". When I move the seat back to bolt it down the front is loose and quite sloppy.

Has anyone else had this problem and if so how did you rectify it?

Is it possible to move the mounting bracket (bolt hole bracket) rearward about 1/2" and then re-rivet?

Model # of seat is 79350
Thanks folks
Mike in Ottawa, Canada