Door panel removal/installation is a piece of cake. Once you have the bolts removed, make sure you pull straight up until all the "fingers" clear the door.
And oh, be careful while prying the cover off that is behind the door panel - they mar easily - just use a small straight edged screwdriver.
Once the door panel is off, hold it in one hand and reach behind with the other and you'll see two clips that you can push in to release the door handle. Once released, it will slide back through the door panel. Some people release the cable, but it's not necessary.
You'll see the wires that need to be disconnected to get the door panel loose. If I remember, I believe the door speaker bolts are 5.5mm, but a 7/32" will work as well. Just take your time.
Did you get the speaker adaptors so you don't cut your factory wiring?