Guys, I am thinking that the base/floor to this will only work if maybe up to three people build the terrain and just have everybody else fill it out with structures, vehicles and figures.
We really need to start checking on space, costs, and transportation before we go much further though. Is there someone we can talk to about this that is in the C4 PR team? Or a project director/event planner? After we get something going with them, we can start getting a better idea of how big this thing will be. I am thinking it will be pretty big, but do not know how feasible it will be to make it as big as some people are thinking. Especially if we want it to look realistic.
Also possibly we can get some sort of sponsor for this to help us with costs, such as Entertainment Earth. Just a thought.
Some planetary designs at this stage are a great idea, but really I don't think we should get too involved in making stuff until we have a set theme in mind.
A backstory is a fun idea too, but if its going to be a display at C4 then it might not matter, it might end up being whatever the viewer wants to read into it if it's a fan-fiction world.
I do love seeing the enthusiasm in this, but let's not jump ahead of ourselves. This thing is a long ways off (but it will be here before we know it, LOL).