RE: Exterior Door Handle
If the screws are mismatched, you can be sure that somebody has had their way with the door. This car has better fitting doors than any GM car that I have ever had, and there should be no mismatch either to the latch or the way the door fits the body.
My suggestion is to take the car to a "good" body shop and ask them to make the door right, otherwise every time you open the door to get into the car you will be reminded of it's flaws. It won't be cheap but it will pay you back when you go to sell the car.
Tim Van Nattan
'94 Mark VIII
Santa Fe/Saddle
"Moffie"