The Blackvue runs @$300 and can be had for even less. Eliminate the screen and that would pretty much do it the rest would be mostly just changing the design itself. The cameras themselves are VERY cheap and readily available no need to have a larger tube just look at your cell phone and you'll see how small the cameras truly are. The main things that would make this unique would be the main electronics not being attached to the camera itself rather in a small plastic box (cheaper and smarter than current designs)