KZ900 Aftermarket Front Brake Mc identification?

KZ900 LTD. Can anyone id this dual disc front brake master?
Bike is 76 LTD frame with a 77 1000 motor with a CPE bore kit, MRE Progressive clutch kit, J model ported/polished head, & 55mm Mukuni carbs.
The bike has a real urban street race challenge look from the 1980's and a lot of polished parts which is a style I'd like to stay with. After being neglected for a number of years of course the mc seals are mush. I'd like to replace this mc with another just like it, or worse, rebuild it. I can repair the broken mirror mount if needed.

Not aftermarket OEM Kawasaki MC. My KZ650 has the same one