Where can I buy a Stainless Filler Neck for a Cabby

Found lots on the subject of filler necks but cant find anywhere that sells stainless ones.  

Searched google but results are just full of forum advice results.

GSF is not clear if its stainless and its ?130, suppose I need to phone and check, awesomeGti dont have them on their website.

Any info much appreciated

dont think they do a cabby stainless version?, you might? still be able to get a genuine one from vw? cabby ones are a bit longer pipe, think they only did tin top ones in stainless, you can use one of these and use a slightly longer rubber pipe at the tank end even a standard metal one will last ages, my ones been on car 15 years and is still fine, crazyquiff on this site sells am afaik drop him a mail

Thanks, Will drop crazyquiff a line.