Hi,
I had the bad idea of driving an boxster and I want one now.

It was a 1999 Boxster that my firend rebuild (salavage title) with 70K miles and it droves fantastic.
I want to rebuild my own (i found few 2000's ones with 20-30K miles on them for cheap. Usually they have nothing, you just have to change a light, bumper and fender and you are good.
My concern is how reliable these cars are. I found few info about the RMS (I don't know if its exactly these letters) but the issue about oil leaking under the car.
I want to know WHAT are the troubles and what are the chance I can get it.
Is it worst on the S or on the 2.5L - 2.7L?
I know that each car have their issues like my old 1996 cavalier that is known for having head gasket issue (I have 308,000 KM on it and I never change it) I just don't want to rebuild an engine or a problem like the subframe of the 3 series from BMW.
thanks
-Dave