I rolled my own, back before Kert had his kit ... like I did my own rear hangers for the front springs, the front hangers for 52"s, etc etc. I'd wonder if he's watching my build for ideas, except of course I'm not alone
Anyway, the brake line should end and go down to the axle forward of the point where the shock bracket would go, least it does on mine.
Fuel line ... huh. I'm not motivated to go out in the heat and look, but IIRC, the fuel lines are all the way inside the frame rail, at least on my '74 (i.e. carbed -- you newfangled TBI guys may be different.)
Ahh, I see. Kert's bracket goes all the way across. Mine's just hefty angle iron, so it's a bit short on the outer edges, making space for the lines.
Hard to gauge height, but I betcha you'd just bend the fuel lines up, so that they go over his bracket, just brushing the inside top of the frame, if that makes sense.
-- A