OK, here's the dilemma. My old z was a 73. For which I had a buncha spares. The new car is a 1970. The brake master cylinder is different and worn out. And $250 - $311. The 70 thru 71 has the lines flip-flopped, actuating the rears first. And I have several new spare masters for the later models.

Can I ..

1) Swap the brake lines and use the newer master cylinder? Even new its $178 at Nissan. $59.00 at NAPA.
2) Find the correct one cheap anywhere?
3) Rebuild if the bore isn't shot?
4) Sell the newer ones here to somebody and use the cash to buy the $250 one?

Tom