Sorry for delayed response, here's a breakdown of the engine work carried out and the all important cost !
Timing belt kit incl balancer shaft belt and tensioner
Water pump and coolant.
Auxillary drive belt.
Cam cover gasket.
Parts came to about £420 plus 3 hrs labour at a reasonable £55 per hour, the dreaded VAT @ 20% must also be added ! All in all quite an expensive job but I now have peace of mind knowing that the work was carried out to the highest standard by an experienced and qualified specialist.
All the best to you and enjoy your Alfa experience.