The neat upside about having land in Scotland is that access legislation was removed about 20 years ago, meaning that you can do pretty much fuck all to prevent people from walking on your land. There are some exceptions I think, like protected wildlife habitats and military grounds. But as long as you don't use motorised trasnsport you could walk about in Rowling's 162-acre Killiechassie Estate, near Aberfeldy in Perthshire.