1999 Supra - Fuel Gauge Problem - Where to find replacement?

My fuel gauge is stuck on 1/8 sometimes empty even though the tank is filled. I have removed the sender and measured the resistance and all within specs 33 - 240 Ohm, I have removed the main plug from the computer Medallion MDC-1600 and measured the sender resistance wires - Pink to Ground and all good 33 -240 Ohm. All the other gauges are working. I have also tried swapping the harness from one gauge to the other and still the same problem. So its gotta be the actual gauge itself.

I am looking for a replacement but having a hard time finding it. The number on the gauge is Kysor Medallion 6503-00013-01 and 060899 (which I assume is manufacture date)

Anyone been able to track down this gauge?

Thanks for your help