yes, I would get longer brake hoses, crown makes some good sets 3-6" lift. but you should really find out if the issue was caused by too short a brake hose or if your track bar is grabbing the brake line tubing.
If your track bar sits too low an angle (links too short), it could extend out to max and allow it to flip in the opposite direction - I've seen this happen in the front sway bar but not sure if it would also be a possibility for the rear sway bar to do the same thing.
you can cycle your rear axle by putting the jeep on a couple of tall jack stands, lift the Jeep and place the jack stands under the frame to allow the axle to hang. take the tires off to gain some extra working droop.