I agree with Kathy, it may work, but you'll be needing a lot more boxes (equipment costs) and height will become an issue. I run two deeps for brood with 3 or 4 honey supers, using 10-frame boxes. So my 4-foot stack (sitting on top of concrete blocks) would tower to about 7.5 feet using your method. Now if you're just looking for quick expansion and making splits, the only thing you'll need to worry about is overwintering, but I know a number of cold-weather beeks who overwinter nucs, so that shouldn't be too big of an issue in N.C.