Phil
Depending on what you are doing, there might be no need to jack the bike up.
Might help to loosen the bolts that hold the fender supports to the frame, as this will allow the supports to spread, meaning that there is less chance of them marking the fender when you move it. I also found that having the fender rack on makes it real easy to hold the fender and manoeuvre it out!
Other than that, what you have said is correct.
Good luck
Shaun