Forum:Xyz Gadgets

So, here's my build for an Xyz deck revolving around Gadgets. I made it to fit the September Banlist, and also to be reasonably cost effective. Mostly I need help with the Extra and Side Decks: I'm not even sure what some of the cards in the Extra Deck will cost since they are not technically in the TCG, and the Side Deck is just a mess. So, give me some feedback!