Silent tower

[mellis1644]

So anyone have suggestions other than custom building for the tower in the Silent tower scenario?

[Harry]

All I have got so far is using the mighty fortress with two wall sections heading out to two regular fortress towers for the smaller structures. I am nowhere on how to do the middle tower because you need access to all floors and stairs'. I suspect I will knock up something simple with a cardboard box otherwise it is quite a serious modelling project.