I've done this and its pretty easy. You just have to hold the barrel thingy at the end of the adjuster screw in place and then just unscrew it by turning the adjuster all the way out. I use a small Allen key inserted through the hole in the barrel to hold it on place.
I was going to get some levers anodised too, but they needed the pivot bearings removed too, and that was too fiddly for me.