Here is some update on the progress. I have completed the walls. And to take the picture I have reused an old roof from an earlier Samurai Castle Tower set. I wanted to see what it looks like with a roof., although the roof I will design for this one will be a little different and with wood shingles texture.
And here is a peek at the interior.
Now I will start to tackle the roof, which will be a bit of a challenge, to make it fold-flat, so that it can be assembled/dissambled for flat storage. Wish me luck!