involves removing the factory fenders so you can see what's involved. To me it looks like a lot of work just to end up with textured fenders you still want to replace, but it's up to you really. It can indeed be done.
I might consider picking them up and chopping them
, and then installing them (see the write-up). That way you can keep your stockers in case you don't like your chop job.
If I recall though you're looking at a small lift too along with 33s. If you're sticking with 33s, I'd keep the lift at a leveling kit type of height if you'll be chopping fenders, as that reveals a lot of wheel well. Of course, you could go to 35s . . . .