I know you said you wanted to try to make her an area that is maybe two or three stories but I'm not really sure how to do that so the only thing I can think of is to get a babies playpen and to either put some sort of netting over the top of it or if you go to the gardening center at Walmart they sell (rather inexpensive) plastic fencing...the kind that you would use to say keep deer out of the garden.

Does this make any sense???? I don't know how else to describe it. But with a playpen and the netting/plastic fencing this would allow Sophie to be out in the open. You could get her a small condo/tree at Walmart as well and put that in her pen as well.

Sorry this may not be what you are looking for but I figured I would post it anyway.

Let us know what you come up with. --- Meg