I am looking to replace an entire floor pan from front to rear on one of my Chevelles. In this case a 1975 Chevelle. As you may already know, nobody makes complete floor pans for the 3rd generation Chevelle. Replacing just the pieces that are available aftermarket (4 pieces) will not be an option for many reasons that I won't go into. Here is my question. Does anyone know if 2nd generation complete floor pans will work or work with minor modifications? Or does anyone know of another complete floor pan from another vehicle that will work with modifications?