I need to replace the door handles on my Spryte because all the locks are broken. The locks I have look like common garage door locks or RV locks with T-handles and a 5/16 in square shaft coming out the back. While I can find T- and L-handle locks like this (Camco #44393), I cannot get four of them keyed alike. My local lock-smith couldn't even get them for me. Anybody know of a place that sells locks like this in sets?