We got you beat. I had a week (Wednesday to Wednesday) in a VWL studio reserved in 2008. I then decided at about 4 months out to try to get a one bedroom.
None were available for the entire time so this is where the split stay came in. At that point we had never stayed at VWL so I did not want to give up that. So to save points this is what we did. We stayed Wed, and Thurs night in a 1BR at BWV. We stayed Friday and Saturday night in a studio at VWL. And then Sun, Mon, and Tues night at SSR in a 1BR. Did I forget to say we had a 3 year old and a 15 month old. Luckily we also had a rental car and moving from place to place was not as hard as it could be. (We never did fully unpack). Fortunately, we did not mind going with the flow and pretty much planned our park days with where we were staying.
After all that I would still do a split but probably only two a vacation. We loved the treehouses having stayed in them last December. Have fun!