Well I did it, I got rid of the CH751 locks and went to Industrial Lock and Hardware to get the replacements. I bought 8 tubular cam locks, added locks to the generator, LP tank , both water fills, outside shower and gas door. It was a real simple process, there online form makes it easy to ensure you get the correct locks. I didn't buy there lock covers instead I got some from Ebay for half the price. So now all the CH751 locks are keyed with those round coke machine keys. I never had issues with people opening or getting into any compartment I just figure why make it easy. I also know some people would never lock there LP or generator but I would... To each his own...
If you are thinking about doing this, Industrial Lock and Hardware were great and the shipping was super fast. It took maybe 30-45 minutes to complete the job, and it looks good, plus all the locks have a cover to protect them from water and dirt.
Lance