Split window latch

[70Custom10Nut]

Any ideas on where to find a center latch for a split window? (original aluminum frame) Do any auto parts stores carry replacements? Or Glass places. Or will the latch off a later model/aftermarket window work? I haven't even started to look, because my schedule has me working 6 days a week and on call Sundays, but I'll have a couple days off next week to go salvageyarding and parts hunting, so I have to make the most of the time I have. Cnut