Keri1100

I just bought some 4" risers for my 1100 and the cables are too tight. I think I would have enough slack in the lines if I just rerouted them to the inside of the triple tree. Not quite sure the best way to do this. Do I undo each cable at the handle bar and move it around back? Do I remove the top of the triple tree? Will I have to bleed the brake line? I thought this was going to be a nice easy install, now I'm not so sure. Any help would be appreciated!