[Razorback1980]

No, the parts you described will not fix your problem in case you didn't figure that out from what everyone already said. I would suggest if your budget for brakes is only 300, send back the rotors and possibly the ss brake lines and get the parts to fix the leak and new front brake pads. If you still have money left at that point you can install the ss lines and new rotors. If not, put them on later. Your small leak will eventually be a big leak and you may lose your brakes at that point. For your own safety, get it fixed asap.