Here's my simple simpit as it stands so far. I'm planning on expanding it over time, but I'm in no great hurry.

http://imgur.com/a/jnElm

My eventual goal is to build a pit frame that has adjustable settings for the position of each panel, then have the electronics built into removable panels so I can swap them out to allow for multiple aircraft in the same 'pit. I haven't really hashed out the details on that particular idea though, so I have no idea if it's even possible.