My new extractor arrived today. It's a 4 frame electric model with 3 legs. I would like to mount the extractor legs on some type of base to keep it from walking around. As it is, the weight of the extractor is about all I can lift when empty. So, something too heavy will be more than I can handle. I also need to be able to take it through a doorway. I was thinking of a sheet of plywood, cut to size, with locking wheels mounted on the bottom. Any thoughts?