Both of the wheel cylinders on the original drum brakes on my '98 240 trailer are leaking. So before I haul out for the winter, I was thinking of replacing them with surge discs. The steel brake lines have surface rust, but not leaking(yet)- I may do them anyway while I'm at it. Was thinking of using rubber flex lines- the trailer already has a section of rubber brake line for the tongue extension. Can I just use a single flex line sized for the full tongue extension to connect the actuator to the T fitting on the axle? I would foldup the excess when not extended. Is the flex line pliable enough to fold over on itself without kinking? Also any recommendations on disc brake kits, actuators, or advice from those who have done this appreciated!