You should be able to find some links to the factory service manual (FSM) on the forum. There is a 5 page section 3377-3382 IIRC ( I was looking at this last night for you but got pulled away) that details how to remove it. However you approach with a "can do" mentality with a small set of tools and ~35min or less you wont have any problems figuring out how to get it off. (the rear lights do not need to come out) IIRC from when I removed it there are a couple flat pieces that come out separately from the bumper that are bolted to the fender well and the bumper then everything else is bolts holding the bumper. Start with the bolts inside the rear door near the latch and along that edge. If you need I may be able to post up that section later today or tomorrow but its nice to have the FSM so I would strongly recommend finding a download link for it.
On a side note, If you want matte black I would just plastidip (7-8$ a can) vs. paying 120 for them to be painted. I did this with both the front and rear and it has held up well. The front I ended up redoing as I didn't do enough coats the 1st time and I will do the same for the rear one of these days. Its also removable if you ever want to go back to silver