Hmm, well, of course you have a better feel for her needs and wants -- but #1 would give her a good workout and a several levels to play/sleep without losing much floorspace. What color were you thinking of? Same for the watchtower and kitty tower. I love the looks of the spiral tower, but it has a much larger footprint and would be more useful for an older or less active cat.

The paradise always makes me laugh, but I don't think my fur-babies would like it much. At least they don't think much of their cat hammock (unless I have my sewing on it!). Cats!

Do keep us posted. I'm intrigued.