Since its still warm and light, been out on the drive and fitted the new spark plugs / temp gauge sender. Quick refill with coolant, run around the block and gauge is working...wooo!
I think thats all the faults (well once manifold gasket done) fixed which were wrong with the car. All comes in well under £60.
So buying the car, £60 of parts, bit of time....reliable cool car. *excluding radio as that can be removed*