Did you?
Also, the percentage figures of bore scoring/IMS on the M96/M97 engines are between about 5-10%. If you buy with high mileage then the IMS is unlikely to go (if they're going to go, they usually go between 40k and 80k), and the boroscope inspection is easy to do so you can rule out bore scoring. Fitting the 3rd rad and a low temp stat along with correct warm up and cool down procedures then makes it incredibly unlikely the engine will go pop.
A Porsche is an incredible car to own, there's so much more to it than just straight line speed. The Boxster/Cayman has a delicacy of feel that only an Elise can better at that price, and a 911 is a whole new thing to learn and appreciate with the weight distribution. An FI Zed is great, especially with the supporting mods, but I'd rather go slower and have more fun. You can exploit an NA 350 much more than you can an FI one, and unless you're doing a lot of high power tracks (Silverstone, Spa, Monza etc) then the difference is more on the driver than anything.
A good driver in a VX220 will leave an average driver in a 400bhp Zed for dead on track.