RE the buoys. No, you cannot legally put a buoy on Lake Tahoe without a permit from the Tahoe Regional Planning Agency and, in California, another one from State Lands Commission. There is a stringent application procedure, also involving obtaining a Best Management Practices certificate if you don't have one. The intial criteria is to have litoral rights to the lake, with over 50' on the water entitling 2 buoys (assuming not in fish habitat and/or other concerns) or 1 buoy if you own 50' or less on the lake. Let me know if I can be of further assistance.