Mirror has the two screws (clearly :P) and a point at the top of the post the mirror attaches to at the top. To remove, undo screws and pivot the mirror toward the bike as you pull the base down and toward you. Dont use force here, if force is needed you are doing it wrong, and its fairly easy to damage the post.
The bulb, do it before the lens, dont use tools to grab or pry as its easy to rip/cut the rubber, just grip the base with your fingers and pull it out and towards you. May take a bit of force, but itll come out!
The lens is easy, two screws, self explanatory.
Only trick for fitting is to make sure the rubber is pushed into the new lens properly - a pair of pliers so you can exert even pressure on both sides of the bulb base thingy helps here, AND make sure you get the little tip of the mirror post back into its spot before you push the base of the mirror post in
Its really straight forward. There may be a little hesitation on the first one but the second will take like 2 minutes....