I had a "glass out" rust removal, new wing fitted and a complete respray last year from Bill Heany on the Industrial Estate, just through the Tyne Tunnel. (The name escapes me). Phone number 0191 2828560. If you call ask for Ron or Clark.
Excellent job in my opinion, and he is the official Porsche repairer for the Porsche Centre Newcastle.
As you live in Teesside you might want to try Redline Racing. They have a body shop which we (R3) visited last year. They are at Thornaby.
It looks a good facility and the workmanship demonstrated looked excellent.
Good Luck, and I know how you feel as I had to have a new wing because I dropped a large roll of Visqueen on it in a similar situation to you.
I was too bone idle to move the car.