Replace Master Cylinder

Lines are available from many sources. Inline tubes sell them as well as others.

I have some NOS ones.

The master is another issue. Looks like an original to me. The after market ones will appear different but function the same. If you do not rebuild it you might want to keep it and not turn in as a core. These are getting hard to find and a someone doing a serious restoration will buy the core for way more than the turn in value.