Finished by roll bar and supports. Took a while to do but I'm really very happy with it and would quite happily be the crash test dummy that tested it! But let's hope it never needs to be tested.
It's all CDS btw there's a guy called tom (tube bender) iirc on ebay selling the stuff fairly reasonably priced. The 45mm hoop itself cost me £60 and 5 metres of 38mm cost around another £70 I think all delivered foc. I had some crazy quotes from some companies who are just taking the p**s with their prices.