Little update, the warranty has finally agreed to pay for the bill, just fine tune some bits and bobs with them now. All 6 cylinders are being relined and all 6 pistons are being replaced together with other less expensive parts.
Managed to source the parts from our suppliers in Germany through some friends at TORQEN :lol:, about £1300 cheaper than Porsche UK. So the car should be back on the road in 2-3 weeks tops.
This is the bill from Porsche UK with the parts being replaced.