It was always my plan to create a pack of plans, but I've never been able to finish it. It was very much "built on the fly" so it turned out to be more difficult than I thought to build the plans.
We did a lot of things to make it more sturdy and durable (screws and glue, tieing in the parts like legos to make it stronger) which also makes it a bit tougher to reverse engineer. My brother in law (a mechanical engineer) did a good deal of work on diagrams, but alas, he never finished them. This was my main stumbling block for making plans available.
Terrain? I've not decided whether or not to add the terrain. It's actually not finished, but was a lot of work to build too. I guess I might choose a certain bidding level, and throw it in if it makes it there.
However, in my gut I sort of doubt that the terrain would be a deal-maker or deal-breaker. But, who knows.
I'm just morbidly curious to know how well it will do... $127.00? Or something more crazy. I guess time will tell.