[Dantilla]

It's possible, but difficult.

If you have all the parts necessary, and can do the work yourself, I'd say give it a try. If you need to acquire the parts, you need far more than just the tranny, and it would be difficult to not sink too much money into a car that is now probably worth less, as unless it is done to factory standards, it's now a frankenporsche with little resale value.