Hey Jax,
Don't forget to change the master cylinder to a disc/drum dual pot type, you'll also need a proportioning valve. If you're going to use a wrecking yard as a source for your parts suggest you buy the whole spindle & disc sub-assemblys from the same car. Then rebuild the calipers. Be sure you have the discs checked for out of round and proper minimum thickness. Did it earlier this year, if you need more details e-mail me. mgg