have you ever done brakes your self??
and yh its possible to do them by ur self, idk what auto part store is close to you, but www.rockauto.com www.tirerack.com
autozone (avoid duralast brand at all cost)
napa auto parts
advance auto parts
just to name a few
your will need to get rotors, and brake pads
did the mechanics say anything abt the rear rotors? if not then just get the front rotors, and brake pads for the front and rear.
if u want to do the install your self look up how to do it first on here or youtube, and find a friend to help who has done brakes in general b4