GPz750 Uni-Track Fuel Sender unit

Hi Guy's

I need a fuel Sender for my GPz750 Uni-Track. My current one is inaccurate and causing the warning light to come on. I have been looking at CMS and other sites and there aren't any...maybe it's made of unobtainium.... lol

Thanks
Noel

listed on the 2 usual parts sites I use ... as not available