Well, it is all what you make of it. Worst case senario is that the master is bad, the lines are bad, AND the wheel cylinders are bad. If the wheel cylinders are bad, I probably would do new pads. I have no idea on the price and availability of olds parts, but just replacing the lines is pretty simple. You need lines, fittings, a handheld tube bender, a tubing cutter, and a flaring tool. If you are buying it all at once, it may cost you close to 200 bucks for some "good" stuff. I replaced the lines on my OT pickup and running lines to all four corners whilst on your back in a driveway is truly a two day job. It isn't hard, it is just a good amount of work. This type of task is truly necessary if you ever want to work on older cars later on, so it definitely isn't "too much", if that's what you are worried about.