Am doing the same conversion on my series 2.Iv,e found 2 places that sell the conversion brackets. 1.ZOO MOTORSPORT,but the owner is ill and the place is closed for now...2..THORPE ENGINEERING,but he didn,t have any left when i rang 2 weeks ago.Said he will get some more made but don't know when.As you can read ,i'm having as much luck as you.Let me know how you get on as i am desperate for some aswell.