Hi Alex,
Two places I have used:
https://www.autofficina.co.uk Elias runs this place. Based in Tolworth so might be nearer for you just off the A3, if you book in here let me know as it’s 10 minutes from me.
http://www.scuderia.london Kabir knows these cars. In Chiswick but handy if you work in London as near the district line tube.
Best wishes
Tony
