Locked diff, and if possible, an alloy radiator. I had a three core on in the VK and it would boil after about a minute, that's with both a mechanical and electric fan, since i put the big alloy one in it hasnt boiled once.
Also, make sure your driveway has a gate. It may be private property, but if the police decide that it's publically accessable they may be able to arrest you for it, impound your car, cell's, court all of that. Same goes for mall parking lot's, shared driveway's ect.