I think you will be looking at around 200 miles. I will be making the trip and plan on running a portion of the time at 24 knots and when the water gets a little more interesting I will just slow down to 17 knots and slow cruise since once I get there the first thing I will be doing is running offshore so no sense in pushing it.
So I figure an 8-10 hr run and roughly 210 gallons of Petro.
Good News is that Westport has the best fuel prices around.