Have a browse here http://www.unixnerd.demon.co.uk/garages.html Hasn't been updated for a while, but it might point you in the direction of some names you could investigate further? Good luck in your search, a decent Indy is worth his weight in gold!
Welcome to the Land . You can get Vanos Kits if you re not afraid to tackle it yourself but it s a very time consuming job .Good luck with it .
Yes I know...watched plenty of YouTube vids and it looks pretty straight forward with a bit of patience. Struggling for time at the moment. There are a few companies which seem to specialise in just vanos but these are either up north or down south. Maybe I've got to be prepared to travel a little.
Could be worth giving Autobahn a call, they're probably the nearest to yourself in Coventry https://www.pistonheads.com/gassing/topic.asp?h=0&f=72&t=796191
