So I got a sweet deal, I'm picking up a banshee axle for $40 comes with the carrier and the brake hub, now I'm trying to figure out what to do for the brake.. so my rear brake is crap, doesn't do anything, should I clean it up and fit it on there, at one point the cable is cracked and I can see rust.. or should I go to hydraulic brakes? How tricky is that and do I have to use banshee brakes?