I have a 1996 manual V6 Elite

which has developed a big oil leak

from around the rocker cover gaskets. I have asked my local garage to replace the gaskets but have been advised the car is too old and to scrap it!
Me thinks I need a mechanic who knows Omegas to do the job; does the forum know of any mobile mechanics around the Cambridge area which could stop me leaving a trail of oil wherever I go?