Brake Reservoirs

I'm looking for a replacement brake reservoir for my '81 750ltd... wondering whats out there. I'm not looking for stock. Any ideas?

i threw a cop mastercyl on my bike cause mine was shot.

it has a smaller resivour capacity but has a glass to check the fluid level, picked a whole cop bike brake system up off of ebay for 25$.

Go to ebay and type in kz1000 in the motorcycle parts section. There is a guy on there that sells front masters. I forgot his name but if you look in his other auctions he has a ton of them. He starts his bidding at 39.99. I got one about three weeks ago and it is nice.