Given that most people take pride in having assembled their car themselves it seems odd to then hand it over to somone else to service it. I can't comment on a the specifics of a 140 cambelt change but oil changes, brake fluid, filters and the inspections that make up the rest of any service aren't exactly rocket science and you have the satisfaction and confidence of knowing what was done. Read up on what the service actually consists of maybe think about having a go yourself. I don't have much mechanical background but I built my 7. Changing the cam belt (mine's a K series) is precisely one step too far for me. It needs special tools, I won't do it that often, I won't be sure I've got it right, and it will be expensive if I get it wrong. I've got the manuals and I've watched the video. It's just the Eastwood principle. What would help me take that extra step? A buddy standing next to me. Jonathan