Speakers On Wheels?

Hi All,

Unfortunately I have to move again and the best I could do, is a large studio space on the fourth floor of a 1930’s era building in a sketchy part of town. This should dispel any notion that all audiophiles are wealthy. The most difficult part of this move will be to get Quad 2905 ESL’s up four flights of stairs without banging them around. I was thinking that I would really like to put the Quads on wheels when they’re in the apartment, so that I could back them up against the wall when not using them and then bring them forward and into place when I want to listen to them. It’s of course important that I mark where the speakers need to be when it’s listening time. Also, I may choose to add a large floor rug so that in itself presents another logistical challenge. Any ideas or recommendations in order to make my life somewhat easier is greatly appreciated. 
Thanks!