The 996 turbo is a solid performance machine. Well revered around here In Stuttgart.
The intermediate shaft failure is not an issue nor is the RMS failure.
The normal service interval is 7500mi/12000 kilometers for basic oil service. Uses Mobil 1! The car has more performance than most can handle bone stock.
I like the look of the turbo, in particular the back. Great car and the prices are reasonable. Due diligence for an inspection and get a good one. Why wait