tKF
I'm away for the weekend or would have joined you for the Essex to Kent bit. Are you going Shoebury to Sheerness, or Canvey to St Marys Marsh? The chaps at Southend give a very good FIS and are always very helpful. Its always busy in the South Essex/North Kent area, so do radio them up.
If crossing at Canvey, you can normally see the refinery chimneys/flare stacks from the Blackwater. Easy Nav.
Don't forget to stay clear/above 2000' of Bradwell.
Hope its a good one.
Didn't know Gt Oakley did fuel. Is that something you have arranged?