Kirin, how bad are they? I am just right now rebuilding some vent windows and may be able to provide latch parts.
The problem with grinding off the rivets is finding the exact rivet to install new latches. I couldn't find any so I made my own rivets out of stainless steel. Sorry, no extras.
While we're talking vent windows, does anyone know how to adapt 56-64 vent windows to pre-55 doors? I know it can be done because Terry's 54 has late vent windows (but he can't remember how)