Brake line sizes

[DrppdBlazr]

So I got a 79 2wd k5 Project. Has a 3/4 frame so all stock lines are gone so I can't look at those to get an idea. Well I got a brake line kit with various lengths, the kit is a universal kit for gm c10s,k5s, and suburbans. Came with various lengths of 1/4 and 3/16. What I need to figure out is what size line goes where. So like what line goes from masyer cylinder to proportioning valve, and what size lines come from pro valve to front brakes and to rear brakes. And what size line runs along the rear axle. Any help would be appreciated. Again it's a 2x4 frame now so i can't just buy prebent ****