Break lines
 

Just buy good quality brake line form the parts store and bend it with a brake line bender and you'll be fine. Most are coated for longevity. There are no performance brake calipers available for the SA or FB that I know of. Most guys just run a TII front brake setup.

These guys may have coiled brake lines stock (easier to use) and the right threads for the ends depending on the year. Never used em but they get good press elsewhere.

https://classictube.com/

This is the right answer, dealing with already bent lines can be a huge pain in the ass, the runs are pretty simple it should be easy to fix, i think the cut tool is like 10 bucks and its maybe 30 to rent the flare/bend kit at advanced