Here’s a little video of my build. It’s almost there. 
http://www.youtube.com/watch?v=qgoTxqskIeA
Careful… Those yellow posts look very unforgiving…
I’ve been lucky with the posts so far, but a couple of days ago I hit a block of ice at ~30mph and one of the front c-hubs snapped.
My first thought was “well, I’ll have to print a stronger one…” 