A lot depends on if you can get the bleeder screws open? Steel line is pretty cheap stuff, as for the rear wiper, If you simply can't live without it, If you do it yourself, maybee 100.00. Steel lines, 10.00, If you pay it will be considerably more. First the wiper switch and wires and motor will be checke to find out what's bad. Shops charge 90.00 and more per hour for electrical testing. Steel lines maybe 100.00 to 150.00, If bleeders open.