At the very least you will need to replace the brake lines, and possibly the
master cylinder. All of that heat might have warped the rotors, too.
Disconnect the brake lines at the calipers (they're toast anyway - don't
worry about breaking 'em). This will relieve some pressure. Pull the pins
and see if you can wedge a flat blade screw driver in there to gently
retract the pistons. Don't use too much brute force or else you will ruin
the seals. Of course, if you are going to rebuild the calipers anyway, this
is probably a moot point. Now, slide the pads out. Voila...
Tools? Lots of PB blaster, your vice grips, wrenches and a screw driver.
Impact tools are good for stripping s**t.
Parts? My opinion is that OEM is the way to go when it comes to things like
brakes, suspension, and steering. IPD sells steel braided lines.
Take a look at the front wheel bearings while you have everything apart.
Might as well feel around the outer tie-rod ends and ball joints while
you're there, too.