Hey Steve,
Here is instructions on doing the nut cage mod.
http://lifeisaroad.com/stories/2005/08/24/valkyrieRearFenderNutCageMod.htmlAs for taking the rear section off, you will need to remove the saddlebags and rear fender bolts. You will also have to remove the rear seat (if you have the stock seat, you will need to remove the seat to get to the bolt. If you have an after market seat, then the seat bolt is what holds the seat on). Once you have the bolts out, squeeze the fender together up near the fender rails a little and carefully remove the fender. You will have to disconnect the turn signal wires so you won't get too far removing the fender until you unplug the lights at the joint in the fenders.
Joe