I had to have a few small sections made up when I transplanted all the AE92 Levin GTZ braking gear into my Nova, the GTZ has a Junction block on the firewall... I basically cut the rear brake lines on the GTZ cut to where I needed a flare and nut put on them so they'd meet the Aussie rear brake lines...
I then took them down to ABS and said I need either new sections with the exact same curves and showed them what fastener to put on each end and the flare type (referenced off the old brake lines...
Cost was $11, they re-used one line and made up another one.
I was planning to used coathanger wire until the idea of cutting the old ones as templates popped into my head...