Owner Had the battery replaced at 79k miles with a 90kw (P90D now), also updated MCU, upgraded to ludicrous in 2016, seems to have every optional package (premium sound and leather, cold weather, super charge, dual charger, premium connectivity life,etc)for that year. It’s a private seller, any advice on how to go about transferring ownership via Tesla? Is this a time consuming process? would appreciate any thoughts or advice about this purchase (Mid $40s) Thanks