LOOOONG Bed to SHORT Bed conversion questions

[74Chevy74]

I know there are tech articles on this, but I'm getting ready to take the plunge into this and have some questions about minor details..... so far this is what I have learned:

Take 14" out behind the cab, and 5" off the back
Install shortbed gas tank
Install shortbed drive line

I get this stuff, what exactly do you guys do with the brake lines?
I know it's impossible but I want to make this as painless as possible and have everything ready to go, so and advice on things I'm missing go ahead and fill me in.....