OK On we go . . .
Here's the inside row of piles. I made the joins in the brickwork line up so the piles are in front of them. Lots of lateral thinking with the clamps and braces - including a couple of old laptop batteries. 
There will be 39 bents.
Looks OK.
So now there is a new row of piles to be made with hoops on the tops. 40 of these because the last one is against the wall by the slipway.
The other side.
The outer edge has 25 x 25 mm angle aluminium which has been trimmed down with the multi-tool so that the "sea" will only be 6 mm deep. Sorry about the metrics.
The whole of the top deck has now been secured and the slipway has been clad.
I made a mock up of the proposed construction of the bents, which you can see on the right. Work is progressing.
That's a better shot.
All of the 39 bents are done. Phew!
