I found it quite difficult to work through the access flap in the wheel well. Maybe OK for changing a bulb, but the 3 screws holding the whole thing in were hard to get to. I jacked up the car, removed the wheel/tire, and removed the forward portion of the black plastic fender liner. A little more trouble but it made removing and replacing the fog light much easier. If you're younger than I am (a great many are) and more flexible you may be better able to work through the flap hole.

While you have the fog light out of the car (you can only do this with it out)...there's a thread on here somewhere that shows how to partially disassemble the fog light to clean the inside of the lens. You just have to rig up a tool with a 90 degree on the end to hold the paper towel or rag. Mine were kind of milky white on the inside and this did a good job of cleaning them using just window cleaner and paper towels on the bent metal stick.

By the way, be aware that there are two styles of fog light out there. The originals have a chrome/silver cap over the bulb. Later styles have the bulb exposed with no cap over it. Some folks have experienced a problem with the cap coming off and rattling around in the housing. I have not. Just a heads-up in case your "insanity" would not allow you to accept mis-matched fog lights.

Good luck with your project.