I have two of the Sony P41's. They show up on Ebay, but a lot of demand for them from homebrewers. You might check with Bob at this link and see if he can set you up with just the cam. He builds trailcams exclusively with P41's.
www.gotchatrailcams.com./
Another cam is the Sony P32or the S600 used by hombrewers. If you find a cam, the Snap Shot Snyper control board is about as good as it gets. Good luck. don