I believe that the side skirts will. The front one I can say no without modification. Example:


The Contour's front bumper sticks out a lot further then the Mondeo's front bumper. The shop would have to widen the kit, or you would have to buy a Mondeo crash bar. There is also a contour near the bottom of our fenders, the Mondeo is missing that dent, so your shop will have to add that in too.


The rear of the Contour has a dip in the bumper where the trunk meets the bumper, the Mondeo goes straight across. Also the Contour's exhaust always exits on the drivers side of the car, unless it is an SVT. If I remember correctly, the Mondeo exits on 'our' driver's side if it is a Zetec, passenger side if it is a Duratec, and both if it is a ST24 or ST200. Exhaust work will be necessary either way (yours will aim at the ground) so it will exit directly out of the back. If you get a Duratec's body kit, you would have to either modify the body kit to allow two pipes, or have your exhaust modified to now exit on the passenger side.
A lot of work, but I believe it could be done.
Or you could make it a lot easier and just go into the
Group Buy forum and buy the parts necessary to get the SVT kit. It will go on your car with very minimal changes.
Hope this helped.