Fellow on another board just did one for his OL. He cut the fork tubes and remachined the grooves for the retaining rings and cut the springs. He used shorter shocks in the rear. If you want I can give him your e-mail, so you can ask him in detail.
lowered my superglide about two years ago. What I did was install progressive suspension's front lowering coil springs in the front forks (2 inch drop) and went to 11 1/2 rear shocks in the rear. I am 5 11" and can now touch the ground flat footed. It also looks cool.