Mike,
Your money would be better spent on a alarm system. If you make to hard for them to get in they will just tear up your Monty, and will still get in.
Here is the post on it. With extra switches it was less than $250.
http://www.montanaowners.com/forums/...ad.php?t=43003
Here is the post as to why I put it on.
http://www.montanaowners.com/forums/...Terms=flagship