Thought i better give an update, got the car sorted for near on £600. According to the mechanic it only needed 8 exaust valves and 1 guide replacing plus the rest. Oil, new coolant, head gasket skimmed and pressure tested, new bolts, oil filter and labour.
The guy had worked in a couple of local alfa garges and now works for a garage called D&H Autos on joiners square in stoke. Would definatley recomend. got me out of a fix for a good price.
Also had a couple of issues because the battery had been run flat. ABS light wich has sorted it's self out which i was informed was a sensor. Has offered for me to bring it back for a once over after i have run it in a bit.
Fuel consumption was a bit off for the first 200 miles but seams to be back to normal now.
Thanks for everyones help.