Can anyone recommend any decent Garages for the seemingly inevitable head gasket replacement for a MK1 Punto?

Preferably South Manchester but I'm hardly fussy, going to ring round for quotes at the end of the month to see what the script is but if anyone knows of a decent place I'd be very grateful.

I'd give it a crack myself but I'm a novice and wouldnt be comfortable attempting it myself without someone who has a clue to help.