Thank you for the very useful input. It really all depends on whether the buyer will come down in price, which will provide me with an opportunity to service the car properly. The current owner services the car once a year with an average of 10,000 KM annually.
Now that we agree that the cam belt and timing belt are one and the same, it will be easier to communicate with mechanics over here, some of which hardly speak any English. Yes, this is a replacement, but they call it a "service" over here. I am assuming that a shop can order a full kit from the dealership, this will help reduce the cost of replacement.
I will certainly take another close look at the car (oil check, hoses, bushes, etc.) if the guys agrees to my offer, I will also take it for an inspection at the traffic department (similar to MoT) before I handover the money, I will ask to check for free play in the suspension and any damages to the underside of the car.
Not many Spiders were sold here, which is what makes this very unique. I would not be lying if I told you that convertibles from Porsche, Mercedes, and BMW are as common as a Ford Fiesta in the UK.
Non-the-less, if the car fails any of the inspections, I will have to let it go and wait for the next one that comes along, which could be a very long time