Mate, what make is the side mount plate, part number , web link etc, and have you some pics showing how it fastens to the bike ? cheers.
It's just the u.s. muscle factory plate mount p/n 69390-09. It fastens to the rear fender support, which already have holes for the mount. Don't know if the international model have it or not, but if it don't all you will have to do is just drill two holes and it will be ready for assembly. If you do order don't forget the screws (p/n 4873M quantity 2 pieces ).
I got mine from a member here and it's one of the more reasonably priced side mount and fits like factory cause it is factory . Check the classified periodically, cause it usually pop up for sale from time to time.