Butchering an ACS stock - anyone done this?

[dave38x]

Hey guys, I've just bought an Element ACS stock in OD for my M4 - my aim is to be able to fit a Lipo in the stock tube/side tubes (cant decide whether I want a 9.9 stock tube life or a 3-stick 11.1 Lipo) and then I want to stick a billy breach mosfet (which I have yet to purchase) in the storage compartment of the stock.

I'm informed it will require some modification of the stock to allow me to fit a nun-chuck in it, some people say it's downright impossible, however there is a certain supplier of batteries that have battery dimensions on their website, and I have a dremel/full machine workshop.

Has anyone done this or something similar?