Chris
If its a 1.2 1.4 common engine then go to scrappy and buy an engine for it, approx £100-150, then you can either swap the heads fitting a new belt (!) or replace the whole engine. It is unlikely the breakers will sell just the head and be left with the block but still cheaper than rebuilding.
Find a local man who mucks about with cars and this will be cheaper than a garage.
Or buy another car
I have some for sale hint hint lol
Helpful Stuart :-)
November 2008