A proper repair shop should have a Celette Bench and can rent the necessary jigs/fixtures for your car from Celette for not much money (last I heard the rental rate was $500).
The car's chassis/body/suspension and steering hardpoints can be checked and if found out of position can be pulled back into position.
You should at least get a quote on how much this would cost.
Granted it will not be cheap. There is the repair shop labor time to remove the car's running gear (wheels/tires) and possibly some suspension/steering components ont the damaged corner and place the car on the bench and there is the cost of the jig/fixture rental (which I covered above), then there is the time to for checking and pulling and rechecking and afterwards the removed running gear, etc., must be reinstalled and the car treated to a proper alignment.
The cost could approach $1000 (maybe more but a quote you need for sure) but it is the *right* way to fix the car.
What you are seeking to do is not without some risk and the car will never be quite right. I might add what you are doing is verboten by Porsche. Based on what I've been told Porsche would not consider the car properly repaired and thus not roadworthy.
Sincerely,
MarcW.