Take a look at the my link to my "invisible sculpture" in my signature. Making the pulley / hoist mobile can be a bitch. However, if you use a wheeled platform, you can move everything underneath the pulley instead, (move your equipment, not the pulley). Much easier.
__________________ Itchy Dog Brewery.
(As of 10-24-2011) Primary - Steppe 112 PA, 2x Monday RyePA Aging - None :-( On tap - Big Dog, Apfelwein, Steppe 112 PA