It seems there is no handing standard on RV doors, if there is any handing at all. Come to find out, it seems there is a standard in the RV industry when it comes to buying door latches, etc etc, that being,.....
when you are inside your RV, if the latch is on your right, you will buy a "RH" latch,...and vice versa. It make no mention of the handing of the door, just that it is a "RH latch". If I were to compare this to a house door, I bought a "RH latch" for a "LH" door, and it is the correct one.
Had I took the time to scroll down on the ebay add, I would have found this clearly explained. Someone said the CW site has the same standard.