I just took mine off for the first time to track down what sounded like a rattle when I hit uneven road. I did not have an extra pair of hands so I put a small plastic fold-out picnic table over the fender. I set a thick blanket on top of the table. Worked out well because you need to rest the faring on something if you want to disconnect the wires for the lights. I did not have to disconnect the lights but it is a good option to have. Also, it makes a good place to lay your HD manual. Tools went on the seats.
Use care when removing the plastic cover for the lights. I'm not sure what the best way is so I used a flat head driver. Did some damage so next time I might put some tape on the tip. Push in the green tabs that hold in the lights, push the lights out and let them rest on the table. Now when you go to install the faring you can see where the faring needs to meet the clips/arms.
For install, do not over tighten the screws. Leave the signal lights a bit loose so you can make adjustments before you tighten up the faring screws. It sound more complicated than it is. Relax, don't worry, have a homebrew and enjoy the process.