if you do a search, you will see many many posts about that kit. there are also other companies in UK and Germany that make similar kits and various interior and engine mods.
the rear bumpers will need to be slightly modified to accomodate the "step" in our trunk lids. the Mondy trunk lid goes straight across. you could either graft the step from a Contour bumper or cut the extra metal on the trunk so it goes straight across.
the front bumpers should fit for the 98+ models, but you will have to shave some of the plastic "under-bumper" to accomodate the shallower Euro bumper cover. pre-98 cars will need modifications around the headlights to make the center grill insert work. and the hood from a pre-98 Mystique should mate with the euro grill insert without much extra work.
the projector headlights will *fit*, but the mounting points are in different places and would require some creative modifications to make them work on our cars. (in europe the headlights mount to the bumper, here they mount to the chasis).
side skirts will work without modification.
my 2 cents...
:p 