I would for sure expect rust under the paint & "wood" trim. Hopefully the rust isn't too severe. Damn that interior needs a cleaning! When you going to try to pull it?
http://www.parts-exp...CAT&srchCat=194
You'd need to know the specs on the speakers to build a proper box.
If there mismatched I wouldn't bother.
Study the parts express site, they have everything you need for doing this.
Show more pics, cool project if it's not too rough.
Will it run? How bad's the rust?
The Taurus would get better mileage though.
Cut the roof rails, black paint it could be cool.