Brake hose length for drum to disk

[Prwa101]

Hey, New here but a big fan, been working on my 69 c20 and got almost done with a disk brake conversion using 82 c30 spindle set up... but stuck on the brake lines, ive read read and read and cant find very much info on the rubber brake line hose length and set up....

Im thinking of making them my self but depending on how much $$ or i might just have someone in town make them but need info to tell him.

Anything would help! thank!

-Prwa101