I custom cut a household white food cutting board for the top and bottom.
Used factory bolt up top and heated plastic a bit to bend it down heading towards front sproket.
Stuck both with a small dab of sikaflex 525? "Vehicle assemble adhesive".
If you spend a little time it will really blend in and follow lines of swingarm.
No melting (probably depends on what each one is made from?) and after a few rides it beds in and chain sits nicely on it.
White looks cleaner and stands out less on silver than the orig, black one did ....but yes it is not orig