Well, isn't this timely. I'am also getting ready to do an Altoona Model Works build. Mine is the interlocking tower pictured below. Two of them actually. I just need to take a short break first after just finishing his massive diesel service building.
Your tower is very unique. I've looked at that kit before. I just can't justify anyplace on the layout for it. Your build might change my mind though. I look foward to following your progress. Good luck.
Bob