65 sb drum/drum brake line length????

[sharkskinman]

Been raining and going to be cold and I work a double tomorrow
I need to get under the truck see if I can at least save the brake line to the rears
But in replacing df rubber hose the short metal to the first T is rusted and leaking
The way they have it set up I'm going to ruin the other lines trying to take just that one off.. So I'm going to try to cut them all to the T for the back and try to get that 1 line removed from T without fatal damage

Front from rubbers to Ts are about 9" each
The one from MC to 1st T (straight) is about 32"
From df T to pf T IIRC about 28"??

I'm going to try to get as much so can Before I go home
I can gather that the pr from T is probably same 9" but I'm needing measurement from pf T to pr T and from that to dr rubber

Any and all measurements would be appreciated
AND fronts are 1/4 rears are 3/16??
Are the threads on the end the same?
Is the T for the back 2 different thread sizes for front/back
Can I just use a roll of either for whole truck?
If so which should it be 1/4-3/16??

I'd I buy individual pieces I can take back what I did use