Cylinder head gasket capput and oil in the cooling circuit

Good morning, I was in the workshop yesterday with my Renault Megane Grandtour built in 2006 due to oil loss, after cleaning you started the car and already came down a lot of oil out. On the bill it says: engine and transmission strongly oiled Result: cylinder head seal defect (pistons were rinsed) a lot of oil in the cooling circuit cylinder 3- piston has bulges (weared) The workshop would be estimated for repair at least 3000€, but can also quickly m Do you have experience with it and can you tell me if I have to scrap the car now or is there anything else to save?