Dude, if you bought a burnt car and need a manual to put it back together your way over your head. With such little knowledge you will spend more than what the car is worth in unburnt condiition even if you got the burnt up car for free. It's just not that simple or cheap. The interior bits from Porsche would cost $10,000 unless you get them used, but a used Dash is hard to come by.
I fixed up a burnt out Miata once. Putting the interior out of the doner car was not that bad, but some of the wires were all melted together under the hood and dash. I had to pull out most of the chassis wiring harness and cut it all appart and use an old wiring harness from an Talon Motor I had kicking around to match up wire colors so it all went back together sorta stock looking. That way we could trace back wires if need be.
With a burnt car, you have to assume everything is destroyed and replace it all. Even if stuff looks ok, wiring espically you ahve to change it because it will be the root of all your problems if you put an interior in and find out wires are touching etc.. There are just so many problems to deal with, if your not a really good shadetree mechanic you could be in for trouble.
Uhh yeah, anyway, good luck and enjoy.
