Any of you kids thinking about going into professional sailing after college? Do it well, and you just might be able to build a $10M beachside mansion like Sir Russell Coutts! Check it out; according to the NZ Herald, Coutts’ contractors have just finished their demolition of the three houses on Tindall Beach in North Auckland to make the property ready for Sir Russell’s 5-bedroom, 6-bath, 667 square meter (7200 s.f.) home. This goes into a Coutts’ real estate portfolio that includes apartments in Auckland and homes and farmland in Otago; he ain’t Larry Ellison, but not too bad for a 52 year old sailor…