Thanks for the feedback guys. Unfortunately I need it to get me to work, blanch to santry on the M50 tomorrow and then back on Thursday morning. Hoping it holds out until then.
What all should I get done in the one go?
Is it the fan, water pump (is that the replacement with the metal impeller I hear people going on about?), the belt (what one(s)) and the thermo. If any of these are unrelated jobs I can do at a later stage I will.
Also what about the 80c thermo? Is that worth while?
I know it's a lot of questions but thanks to all of you that got back to me. I needed the help badly so thanks.

Chris