Hello all,
Sorry for posting so late but wish to say a big thanks for all the replies! I had posed the same question to the boat owner and she also said not to worry too much about when you arrive at the tunnel as long as you get there at a respectable time. I was only worried about traffic per se and was worried that if i was too late, then due to traffic i would be denied entry. But by the looks of it, i am being a bit paranoid! The same train of thought applied to which way round to go. I had planned to stop at Stone overnight, then go from there to Etruria overnight, then head to the tunnnel in the morning to be safe but it looks like i dont really need to. So thats reassuring since it means i have more options planning wise, and thats part of the fun!.
Perhaps you haven't seen the headless woman yet as she is looking for Mr. Right!