If I can swap out the handlebars by myself, then anyone can do it...lol. Seriously, it's a lot easier than it seems. With the FZ1 bar, you just need to either drill 1 hole on the left underside of the bar (the exact same hole is already there on the right side). This hole is where the little nub on the inside of the turn-signal housing inserts into the bar to keep the housing from rotating on the bar. Some people have also cut the nub off, but I wanted to keep it to make sure it was secure.
It took me about 30 minutes, start to finish, to swap them. Just keep track of any little parts you remove from the kill-switch and turn signal housings when you have them open and you'll do fine.