Yeah, by no means do I think it's easy to just upsize it and you're done. But having a design that transforms gets you a good part of the way there. It's very doable and while not a simple thing, easier than one would think. I have no idea what these guys use for CAD software but personally having experience with Solidworks for CAD and Master Cam for CAM, It's pretty easy to edit drawings and add features then update the assembly to verify what you are doing is going to work. With that said, thinking about it, if you took Magic Squares Devastator as is and enlarged it to the size of constructor, I bet it would work fine!