I would fabricate my own lines out of copper/nickel brake tubing, 3/8", you could make regular flare, inverted flare, or compression connections and use all fittings that are readily available at hardware or automotive stores.

1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy