I did a quick SketchUp model (intersection of two extrusions) of the a) drawing above, to see what it might look like. I moved the rear wheels back because the tail overhang is way too long to be practical.
I'm not sure how practical it would be. The wheel tack is very narrow and the height is pretty low. The wheels are about 25" in diameter, which is a 15" rim, and I scaled everything based on that. The length ends up at about 15'-8" and the maximum height is ~4'-1". (The standing figure is about 5'-6" tall.) The minimum ground clearance is ~7 1/2" - and the center to center wheel track is only 2'-9 1/2"; which is not a good thing. The front wheels need to be moved back and be wider apart.