1984 Nighthawk 750 S exhaust advice needed…

[Boosh63]

I have a new to me 1984 Nighthawk 750 S that came with a 4 into 1 setup. I have decided to spruce up the header and use it until such time I find a serviceable original exhaust setup.

Is there a good slip on that is both that shiny black chrome like the stock one and actually silences the bike?

[mollusc]

Slip-ons for the bike are rare enough as it is; finding one that is black chrome is likely to be next to impossible.  Maybe there's some kind of universal cone with an adjustable mounting point that you could hunt down.  The input pipe diameter and the mount point are going to be the most crucial aspects.