Not very easy at all AFAIK. I believe there's a guy in holland or sells 1150 style beaks designed to fit on the 1100 though. Not sure who it is but remember reading a post about it a while back. I'm sure someone will let you know.
trotsky did put one on his 1100 - which i since bought - have dug out the original receipt and pm'd you with the blokes details (the chap in the Netherlands who makes a fibre glass version of the 1150 beak for the 1100)
trotsky did put one on his 1100 - which i since bought - have dug out the original receipt and pm'd you with the blokes details (the chap in the Netherlands who makes a fibre glass version of the 1150 beak for the 1100)