Start on the boxes first, but DO NOT start with the gear box, it's a bit harder then it looks. Start with the gun mount and the bridge. Then do the EDA. Then, do the gear box. Then do the ion arm and the power cell. The power cell and ion arm are the smallest (and the hardest), so by the time you get to them, you'll be so used to building boxes, they'll be easy. As for the motherboard. Do it last, but if you want, you can cut out the dimmentions now, so that you know you have enough board. Thats not the problem with the mother board. The problem, is trying to have all your boxes match up with it. If you build it first, it might not happen, but if you do it last, you can customize your mother board to fit your boxes. Also, Overlord, are you the guy who said that your friends boss is selling 59' cadalac? if so, where does he live?