TOPIC:

Looking for exact KZ650 replacement bars.

Original bars span is 31" wide while pretty much all aftermarket are around 28" wide.

This makes for a tough fit on the left side and a nearly impossible fit on the right due to the MC.

Suggestions?

I don't believe any company makes exact reproduction handlebars for the various KZ650 models. Over the years Kawasaki made several different types for the various KZ650 models. One option you may want to consider is buying a used set for your bike's exact year and model and then have the bars re-chromed. If you do that you can have a correct set of bars that look like new. Having the bars re-chromed may cost a little more than aftermarket bars, but they will be the correct bars for your bike. Ed

Depends which bars your after. If it's B1 then no one sells repop bars with the wire holes and center reinforcment band.
Are you after US height or Euro height. If US, then there's plenty knocking about in the UK as first thing changed when imported over here is the bars. In fact, I think I have a couple of US sets knocking about in the garage.
As said eBay is poss your best bet as postage from here would be a pain.