2close: This is from the Avantext PA28 MM. Very vague but the skin replacement is straightforward. Can't remember if it comes with pilot holes but that's no problem if you use a hole locator.
4-57. STRUCTURAL REPAIRS. Structural repair methods used may be made in accordance with the regulations set forth in Federal Aeronautics Manual 18 or FAA Advisory Circular 43.13-1A. To assist in making repairs, Figure 4-10 identifies the type and thickness of skin structure used. Never make a skin replacement or patch from a material thinner than the original skin. Original material and thickness is recommended and must result in a surface which is as strong as, or stronger than, the original skin. However, flexibility must be retained so that the surrounding areas will not receive extra stress.
When making major structural repairs, other than using factory manufactured parts, it is recommended the manufacturer be contacted. No major alterations are recommended without contacting the manufacturer.