Thought I'd share an article I wrote for the current issue of Pond Trade Magazine, that had to do with this particular job. It goes into how we came about the job and more about the design, features, how long it took, etc.
By the way, if you aren't already a subscriber, you should subscribe! If I remember right, the subscription is free to industry pros. It's a good magazine. Something to learn about the water feature industry in every issue!