Buying tow bar/base plate for towing, need anything else?

You need to tow dolly for that setup. But you could have a lube pump installed for the auto tranny. The problem with those is that some times they fail. And when they do you won't know it until the damage has already been done. I'd go with the dolly. And at some point you might want to replace the car with something else, your good to go.