Hello paolo, enjoy the car. I bought mine 5 years ago, 2002 Boxster S. Like you I did the research first. I read a lot about the IMS, RMOS, AOS D chunk ect. I changed the oil and filter straight away and cut open the filter to make sure there was no ferrous metal in there. Everything was fine, so I just change the oil every time I store it away for the winter. I use mine for six months most days every year. My clutch was fine when I bought it and it still is now. If the clutch goes sometime I am not sure what I will do. Will I do the IMS and RMOS at the time, all I can say is I will decide when I take the box (trany) out. My IMS is probably a single row, yours could be a double row. If I was the type to worry about the IMS I would have had it done before now, but I am not, I don't think about it I just drive the car. It gets a real good thrashing in 1st and 2nd most days, it loves it, right up to the red line. They are meant to be driven and revved these cars. Its done 92,500 up to now, no funny noises, runs very sweet indeed. I love this car and have no intentions of selling it, I cant wait to drive it tmoz.