Cotrolling 3 brushless motors, 1 servo, 1 led. and Arduino help

I purchased the 3 motors already. Just was hoping 1 motor controller shield could control them where i dont have to buy 3 ESC

These guys: http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=8622

Here is what I'm using as guidance: http://openrov.com/page/openrov-2-0-overview

But mine will have a gopro camera vs tethered video