As I posted in another thread I have been having a lot of trouble out of the keypad on my Cannon safe. I was wondering if it was possible to convert it to an old fashioned combo dial lock. Do any of you guys have any experience with this process? If you are I have a few questions. How much moola am I looking at for a quality lock and dial? What brand should I use? Is this something I could do on my own or does it require a locksmith?