964 weekend track car

I've been considering buying a 964 C2 to modify for track use as well as a daily driver. I was thinking i could just buy a highmileage example and modify the engine because it would be basically rebuilt after all the work is done. Bore stroke, cams, heads, crank, injectors, plugs. I was wondering if anybody had input as to whether or not this is a cost effective plan asweel as any alternative suggestions.