As to the questions of how to built it, and how long it took, it was actually pretty easy... I didn't really use any new techniques on this one, except for the hoarding perhaps. It took about a month to build from start to finish, but that time was shared with other painting projects and terrain projects. I think that if I had dedicated myself to it, it could have taken about a week or two to being together.
As for a how-to, I plan to throw an article together soon. I will post here when I do!
Thanks again,
n.