OK folks! Looks like the Grey Knights set up house in the fortress.
I snapped a bunch of views, and here they are:
I was very glad that everything worked out in terms of size, and everybody can see over the walls, etc.
A close up...
The Justicar is in charge...
These side pieces are designed to be placed in different patters, etc. You could also make 2 different forts from this set.
If I get to play the test game this week, I will try to get some shots of it in the various configurations.