I look forward to helping you with that kit! It's not as hard as it seems. Also, looking over your kit, you can make the inner drop boxes yourself from the offcut parts of your belt and knee ammo belt. Saves you a little money!
Double edit! It looks like ATA comes with the inner drop boxes now!!! I really got ripped off ordering mine a year ago!
Looking forward to seeing you build this thing. If it goes at all like your helmet did, it will be a piece of cake. Make sure to document every little thing you do with pictures, so people can stop you before you do something wrong.
On with the pics!