You can move the plaza to any desired position quite easily - convert the .world file from binary > text with the IWTE editor search the _world.txt file it produces to find 'plaza'
you'll find something like:
Code:
5 Plaza
4 # characteristics count...
10 GameObject 1 1
14 GameObjectName 5 Plaza
14 GameObjectType 5 box2d
8 HoldTime 1 5
+0.0000944 -27.9999084 2 +1.0000000 +0.0000000 +0.0000000 +1.0000000 2 +20.0000000 +20.0000000
+0.0000944 -27.9999084
are the x and z co-ordinates increasing the z co-ordinate say to +10.0000 would push it further back
the
+20.0000000 +20.0000000
at the end are the dimensions of the plaza you can tweak those too.
It'd only be trial and error to get what you want.... save .txt file and convert it back to binary with the tool.
Ladder positions (docking points) are only those that were originally in stone_fort_D which it's based on. I've been able to add a docking point on experimental version of something else, but wasn't really intending to do it for this, its already got more breach / docking points than some of the other forts.
I've not seen that problem with deployment in my tests with it, do please let me know if that repeats itself.