Umm, Scienceguy I made that design "attempting" to make it exactly how it is. It's complex yes, but it's about as simple as that sort of a bridge/poker can be made...
5/10
I've been experimenting with green wheels lately, And I think mechs using them could be beneficial on levels with small-ish build areas. So, I present Ken75's green extender:
http://www.fantasticcontraption.com/?designId=11856257