Seox, can be done. do you want the vent windows in your door glass, or one solid piece of glass.
it would probably be easier to get the right doors. the 50 had turn handle, one piece glass, the 51 turn handle and vent, 52 push and vent windows.( i think the 51 info is right i'll check ) it depends which combination you want. doing surgery is a lot harder than just swapping doors.
