Interestingly, after looking at your pics I realized that the floorplans of the tower aren't totally random. There's really only two, A and B, though it appears they're in a mostly random order (at least I can't find a pattern after a brief look). It goes like this (from bottom up, first 15 floors): AABABBAABABAABA.
Not really important, except that I was expecting this thing to take a while to go up given every floor seemed oriented differently, but if there's really only two orientations then they should be able to get it up fairly quickly - which is exciting because I love this development.