This model is not my creation, but was made from the instructions found here: http://www.brickshelf.com/cgi-bin/gallery.cgi?m=fivestarbrick While an excellent build, this model suffers from a few mechanical bugs, so I've decided not to take it any further - hence the lack of tubing connecting the pneumatic cylinders. It also contains some rare parts (transmission driving rings, steering parts, 16T clutch gears, etc.) that will be very useful in future creations! Nevertheless, I think this model captures the essence of the prototype extremely well, in looks if not in action – anyway, I think the photos speak for themselves! Please feel free to contact me with any questions at mrrjbrown1@hotmail.com