Sorry I can't help, although it has been many years since I have been to Essex, I am not sure that I can persuade the other half to ride that far for a cam chain.
I understand your desire to have help, I asked the other half to go through it with me and then to check my work after I had completed it. It is reassuring to have some one more experienced on hand just in case something is not right. Fortunately I was able to get it spot on, but I am dreading the day I have to do the back cylinder too. I think that when that day comes, I am taking the engine out and doing it on my bed so I can have a comfy seat!
