This is something I've been working on since last night - it's nowhere near done, but I figured it was presentable.

WCD (High res image here):
-Dimensions: 28"L x 27"W
-Transmission is a repackaged WCP shifter with calculated speeds of 6 and 17 ft/s with inversed CIMs (more on that below).
-Weight is 39 lbs with everything featured. A little heavier than I'd like, but I haven't even begun lightening, so it has a lot of potential to be lighter.
-2x1 is Versatubing, and the 1x1 is all 1/16" thickness.
-6 4" diameter x 1.5" wide colsons with 1/8" center drop driven by 9mm HTD belts
-Yes I forgot to put the cams in the model, though the holes for them are there.

Inverted 3 CIM shifter (aka: The House):
-WCP DS guts with a 2.92 spread.
-Driven 42T gear is now outside the gearbox and cantilevered.
-Power is transmitted from motors to 42T through cantilevered 50T idler gears (not shown in model: switching from live axle gears to bearing bore gears on a dead axle).
-Entire module weighs 10 lbs
-With current drop and positioning the bottom CIMs are 3/8" from the top of the 2x1 tubing, and do no extend past the halfway point on the tubing, so any size wheel can be used without interference.
-Design opens up enough room in the bellypan for continuous electronics.

As always, constructive criticism is always appreciated, and I'll be happy to answer any questions anyone has.