I am getting ready to replace the rear half the floor in my 91 LX, which is cracked and separated from the rocker panel. I plan on replacing the pan from the front seat mount to the kick up for the rear seat. Can I use a floor section cut out of a 1994-2004 Mustang? They are easy to come by in junk yards here, where foxes are few and far between (and when you find them they either crashed or rusty).