Here is a small update.
Been doing some research on the guns, and these are the guns that will used:
This will be the maingun which will be placed in a protected turret.
These will be the AA-guns in single-barrel "turrets".
These are the barrels i will use:
The barrel in the rear was planned to be used for the maingun, but that turned out to be a 225mm gun, so that one won't be used.
The front barrels (4 of them) are the AA-guns, and the only remaining barrel is for the maingun.
Here a update:
Maingun under construction.
Interior under construction while i can still get there.
The deck above it will be removeable.
Here the front end of the interior is being build.
Before this wall will come a massive block of wood.
And this is what it looks like from the shore.