[wrparks]

Problem 1 I would say is bad wheel bearings, pretty easy to fix. Did you do the axles yourself? Any mechanic should have checked the wheel bearings.

Problem 2 is most likely warped rotors, and while not necessarily cheap, pretty easy to fix. It's normally caused by morons at a lube shop using an air gun to tigheten lugs and it won't appear for a while afterwards so it's hard to prove.