Manual Transmission - McLeod Clutch Master Cylinder Leaking, Any option besides $75 rebuild kit?

Hey well I have a McLeod Clutch MC and it appears to be leaking a little bit. I think it's just an O-ring, and not in need of an entire rebuild. Is there any kind of warranty through McLeod or something I can do? Thanks.

search and you might find the PN. I think willwood has a "rebuild" kit that has the Orings. Ive seen somone post.
That and use a brake hone, some have a burr in bore