Head gasket dilema! will it be a hard job?

Almost as bad as Found On Road Dead or Fix Or Repair Daily. Both long time acronyms for FORD used by old time Chevy guys. The biggest problem changing the head gasket is making sure the head isn't warped. You can always have an automotive machine shop check it for you after you remove it. You will need a torque wrench and a shop manual ( to get the torque specs from). Don't know about the UK but here the wrench can usually be rented. Other than that changing the head gasket isn't a very difficult job. Just make sure you drain the coolant first so it doesn't come pouring out into the cylinder bores when you remove the head bolts. Good Luck.