There's no special procedure for bleeding ABS brakes if you are just changing pads or calipers as long as the master cylinder didn't go dry during the bleeding procedure. Try adjusting the e-brake shoes so they just slightly drag while rotating the wheels, then re-bleed the system the normal way, i.e. RR, LR, RF, then LF. I don't think the moron hanging the calipers like that can cause excess pressure buildup in the system, but if the brake hoses are the originals, it would be a good idea to replace them first.