Nick, you might want to look online at hemmings, pcars and rennlist to shop for a dual purpose 911. I've done the 944 turbo thing. They are quick and fast but they don't have that ride to hell personality of a older 911. Older 911s have a very raw, point and shoot feel and are a blast to drive. Don't go newer than a SC because of the extra weight. If you go older than 74, expect to pay more for a excellent example as the prices are climbing and upgrades will cost you more.
You might also enjoy a older BMW street/track car. One of the worlds expert builders is in your neighborhood. BMW Independent La Jolla upgrades 60's/70's 2002's and early 3 series with late model 6cyl/gearboxs and brakes. They are fast as hell on the track. The owner built my lightweight BMW 1602 street/track car with a engine from a BMW Pikes Peak Hillclimb Team car.It rev'd easily to 9000rpm.
It was basically a BMW Formula 2 engine in a 1900lb road car that looked completely innocent.