Joey this lock will work. They are called baggage locks and they're the same as locks that are used on RVs. You can buy them from Eastern Marine or RV shops or Amazon or Ebay, etc. Camco and some other brands also make the same lock. As long as it is 1 1/8 inch it should work.
I don't remember if I was able to use the cam part on the end that comes with the new lock or if I used what was on the original.
If you have any problems after you get it let me know and I'll check out what I did.