I take it you basically just want to remove the front and back vent windows.
The front doors look to be relatively simple. The back might have the problem of the dogleg at the bottom of the door. You might just not have the room to lower a full hight window in the back doors.
As for the front doors. the first place I would start is the scrap yard. You'll need some tracks to replace the ones the vent windows provide. Basically look for another set of tracks similar to your lock side tracks. reverse left and right tracks and they should get close with little modification. Since your not going frame-less you shouldn't need the reinforced tracks from frame-less cars but they would work also if thats all you can find. You'll have to fab up a continuance of the window frame down the front to replace what the vent window filled in. Donor doors might fix you up on both accounts.
As for the back windows I would basically start the same but with the dogleg at the bottom you might not be able roll the new window down all the way. Now this is were I would start thinking of going a little farther than most. I would chop the top so that the new shorter windows didn't have to go down as far. Chop the top just enough to make sure the windows clear the dogleg. Don't know for sure if it would look right chopped but I would think about it myself. Then again I'm American and we're all a little off here. Chop the car first before doing the front windows though