You'll want to take the airbox off so you can get a better handle on how the brake line runs,there's a bracket on the oil tank that holds it in place.So if your that far taking the carbs off wont add that much more to the job,but if you really want to make life easier get as much stuff removed so you can get at the caliper unobstructed too.That will make removing the brake line a bit easier as well as bleeding the new one.
Find something to suck the old brake fluid out of the reservoir and lay a rag under the fitting so that when you take it off the master cylinder fluid doesn't run all over the place.Same goes for bleeding the air out at the caliper,use rags to sop up the fluid and then once your done spray everything down with brake cleaner.If you don't have any of this get some,you'll use it to clean just about everything trust me.