Today, I sold my extra set of gauges to a nice gentleman from Bridgeview IL. He's had several gauges rebuilt by Marcel already and jumped on my Craig's List ad as I basically gave them away. Turns out, he's big on saving classic bikes and has 16 750s from years 70-76, two Z1s and some triumphs. He mentioned he had a 76 750 with 2100 miles all original from the first owner too.
If interested, look up Wayne from R&W cycle services in Bridgeview. I will make some time to go check out his collection soon. He also has a ton of parts.