600rr fairings (07+) suck for taking off and putting back on IF you are completely swapping them. there are a lot of small screws that hold interior plastics to 2 different outer plastics. then add the air dams and making sure it all lines up. its a bit of a job.
other one that is a little tricky but not nearly as bad is the 05/06 636, for the most part its easy but the front air dam has sections that have to clip together around the rad and then clip to the under nose fairing air dam then you can attach the fairings. again little tricky but once you get the hang of it its fast-er....
ive taken other full fairing bikes apart and they were not nearly as bothersome as the 600rr.