i did the lining in the Escort, not as bad as you would think to do really.

As long as you use the correct foam backed material it will look nice and flat as it will cover all sorts,
using a thinner material shows up all the imperfections in the hard lining as its far from a nice finish.

They are dead easy to get out too, its amazing with these old cars, armed with a phillips screwdriver you can have the whole car stripped down in an hour