| Did mine today, if you do it in a logical step by step process you can do it without having to disconnect all the wiring loom etc.
Take all body work off, top fairing supports, clocks and plastic cowel from under the headlight casings.
Working from the left there are 4 or 5 bolts that hold the cases together and 2 bolts that hold the casing to the headstock, remove these.
There are 3 bolts that hold each headlight in place, leave these as they are, so the headlights stay in the casing.
On the right casing there is 1 bolt in each headlight, take these out. Cases should now split and you should be able to disconnect the headlights etc. Take the left casing off the bike, remove the headlights, rubber grommits etc out of the left case and transfer these to the new casing.
On the right case there are 2 bolts holding the fuse bax in place, remove these and the various rubber fittings etc. Remove the 2 bolts that hold the right case to the headstock. Bolt the new right case in place and bolt in the fuse box and rubber mounted fittings etc.
Fit the left case in place, connect headlights etc and replace the bolts.
Replace rest of items such as clocks, fairing supports, plastic cowel and top fairing etc etc  | 
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