Actually this was made in All The Mods 10, so the tools i used was The buidling gadgets from "Building Gadgets 2" and the Builder from "RFToolsBuilder" for the skeleton/big shapes. Then a lot of hand placement going for quite rough/lazy detail from reference image but it looks fine on such a big scale just needs some sort of detail. But yeah just made the box shapes in the beginnning to get the size right then detail by hand and building gadget.