There's been loads of guys fitting clip ons in the past, have a trawl through some of the old posts and you'll find the same things being asked about in most of them too.
http://www.ukmonster.co.uk/monster/s...archid=2485109
The trickiest thing about the whole excercise is fitting it all back together in a smaller space, it's a puzzle with no particular right or wrong way, just trial amd arror.
I will say that a double banjo bolt on the master cylinder will cause you no end of grief to refit, as will packing a (now) too long brake hose back in there, reading through the old threads will highlight what to expect.
It's not difficult BTW, just frustrating, and will take longer than you thought.