Metering Head Help Urgent!

Hello Vw fans,   DO YOU HAVE A SPARE METERING HEAD… PLEASE???? 

My little Mk1 is due to go on the road for its first outing on Friday, and my mechanic has just called me asking for a replacement metering head… he was on his way to the MOT centre when the metering head died and after having it apart informs me i need to find him a new one. 

I do not know what is wrong with it but he had insisted it's a replacement metering head needed. 

Does anyone out there have one they would like to sell. It's running a 1.8 8v from a mk2 but I believe the metering head is the same as the mk1. 

I am happy to travel a bit but I am tied down with work. 

I am in Banbury Oxfordshire. 

Anyone out there help? Please???