The hope site does have a video showing to overhaul the entire hub, according to it I can just pull the freehub body right off...? I'll give it a try. I'm hoping I can do this even though I have spokes and all attached, I'm not keen on rebuilding the wheel. I'll need a "special tool" (just looks like a piece of tubing to me) to pop it back on, but at the moment the wheel is useless so I've nothing to lose.

Thank goodness it's ski season here