Long Brake Line Question Lenth & Thread Size

[Machman]

On a 1971 Sportsroof/ Mach 1 car w/ power disk brakes what is the full lenth in inches of the long brake line that goes from the front distribution block to rear brakes of the car?

I will need the appx lenth of the line un-bent as I will buy a straight line and bend it myself. ( they come in 50" , 60" 72" , etc lenths and am not sure what to buy)

Also what is the diameter of the tube and the thread size on the fittings on each end?

I looked in my manual but the info is not there

Thank you in advance for any info