KZ200 Luggage Rack?

I recently picked up a pristine '78 KZ200 that I use to commute 3 miles to work in the city (replaced my '08 Honda Ruckus). I'm in desperate need of a luggage rack, however. I've seen a few photos of bikes online that have what looks like an OEM chrome rack that attaches at the rear shock pivot points, but have not been able to find anything. My first question is: does anyone know where I could find an OEM or aftermarket product that would work? Second: is there a good place to have one fabricated (I live in Salt Lake City but assume I could have one made anywhere in the US and shipped to me). Lastly: would something from another similar bike fit, say a KZ400 or something like that?

Thanks so much and I look forward to spending some time on the forums!

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