Hey hey show a little modesty! We don't go around turning
YOU upside down and taking pictures!
*chuckle* Anyhow, on the more nuts-and-bolts side of life, for what you're building there, why not use a Kit Bot frame from IFI? It's rock solid strong, really light, and sports 1" center free fit holes accomadating 1/4"-20s. I know it sounds tacky to use a kitbot frame... but really, its tough to beat for strength/weight balance.
Are the transmissions AndyMarks? Hard to tell from here.
Looking good... NICE wheels, did you all make them?
-q