I'm using the same cameras on my Sig Kadet Senior. I use them to find lost planes. Have found 4 planes so far. One camera mounted looking down, one looking forward. Here's a video clip I filmed the other day. Experienced a deadstick. (ran our of fuel) Engine quit at 16 seconds into the video. I got my cameras from rchotdeals.com for $59 + $5 shipping.
www.youtube.com/watch?v=F_kCtYN1yfY