Welcome to NewLifeGames, and congrats on your purchase! Sounds like you got it up and going and pretty much figured out. Yes, you can just drill that lock since it doesn't sou d like any of the other keys fit it. Barrel locks are cheap, however, I would warn you to keep the cam on the inside, as sometimes finding the right one is tricky.
As for a manual, you can have full access to NewLifeGames.com (including the Classifieds and the NLG File System which has hundreds of manuals, including yours, as well as tons of other info on your machine) by making a small donation and becoming a Contributing Member.
Again, welcome! And please post with any questions you may have!
