911 Rust
The previos owner had wisely left the car outside with a bad Targa top. Water had gotten in and over time had rotted out the floor by the back seat.
Before
after
The repair is pretty easy. As long as the area isn't structural and there is plenty of metal left it seems to work just fine.
Be certain that you clean and treat all of the metal before doing the repair or it will rust again quickly and the fiberglass will break loose.
Use the good fiber sheets, they are easier to work with and stronger.
Make sure that you cure whatever caused the rust (in this case the leaky top)
Refinish the area back to original and enjoy!
