Thanks man, I'm glad you like it! You are correct on the tranny. It didnt take lots of work, but you can't do it with the stock chassis. I did it first with this one from
RCM-RC, which is where my upper chassis came from. The hardest part was actually figuring out how to bridge that gap between the tranny and the upper chassis. The bar is strong as heck and makes a great handle, too. I've had a few ppl say I should lay the LiPo's down, but I'd have to make another chassis and I don't really feel like it...after making the first one. The CG is low enough anyways, I don't think I could flip it if i tried. It has about 0.625" ground clearance in front and 0.75" in back. This puts most of the weight at or below the axles- where it should be.
Edit: With the RCM-RC chassis you will have to drill and countersink two more holes in the back of the chassis to flip the tranny around. And yes, come up with a way to bridge the new gap.