Hi Gareth,
I decided to do all repairs by myself. Seller gave me only £200 cashback (Better than nothing).
At this moment I have done - Head skim, thermostat, water pump, cam belt, oil, oil filter change and also turbocharger have been changed by the way.
Now I having a problem with oil pressure. Oil pressure light comes up on 90 deg and 1300-1600rpm. Made pressure test, it was 1.8bar on 2000rpm (Looks it is slightly under of minimum, i guess it should be 2.0 bar minimum...). Oil in my car is 5w-30 at this moment and I'm not sure about oil quality. I'd like to change it to Mobil1 5w-40 oil and check if oil pressure light will appear again. If this action will be unsuccessful, then I will do oil pump and oil intake pipe check.
So, this is how I sorting out my problem