If your doing rear disc you may need to have the parking brake adjustment relaxed, there is a hole in the hub on each rear wheel to insert a thin screw driver and rotate the adjuster.
You'll need a 5mm hex to remove the disc locator screws.
Use MB disc squeal paste.
Get rubber gloves and a breathing mask.
Get a big 21mm or so C-clamp to press back in piston.
Get a siphon or turkey baster to remove brake fluid from the resovior so when the pistons get pushed back in the resorvior it has room or that brake fluid will not leak.
Brake cleaner, pads should come with replacement caliper bolts with pre applied lock tight applied, don't reuse old ones.