yeah the air box is a bitch, easy, just time consuming and hard to work out what to undo to get it off etc.
if I still had mine I'd do a step by step for you.
basically you need to take the top cover off, once you've done that you have to unclip the top velocity stacks and remove them, then you can undo the bottom ones (4 or 5 mm allen key, either long t bars or the long allen key in the bike tool kit combined with a ring spanner to get at them).
once you've undone the bolts pull them out (they also have a locating slot that holds them in place, just pull them out don't worry), you should then be able to remove the airbox (remember to unplug all connectors and fuel/air hoses first). you'll then need to remove the ram air system scoop etc (just pull them out, they're a real bitch to get back in, there is a nack to it but couldn't really describe it on here).
after you've done all that you should be able to see the head and coil packs and you should be able to fit from there easy enough. I would possibly look at getting some block off plates from graves or someone as the PAIS bollox takes up a load of unnecessary room.
as I said before, if you can make it on either day, I can show you in person as it doesn't actually take all that long (I managed to remove and refit my HM QuickShitter in a lunch hour at work once I knew what I was doing)
