Graeme, However you choose to go you need a new system, That's just so much scrap and there's no point trying to graft on new parts to rubbish. My 2010 plus 4 exhaust looks like new and yours is a relative baby in comparison. What's the manifold and cat like and the heat shield through the chassis looks like an old christmas cracker. If your handy with the spanners get a quote from Merlin or check out a Librands sports exhaust.