Thanks for taking time to write the description. Don't know if I'm up to the challenge, but your prop is outstanding.The base is comprised of three 30"x 30" square platforms welded from 1/8th x 1" steel tubing. I hinged the bottom platform to the base with two heavy duty hinges so it could move forward. I hinged the second platform to the bottom platform on the right side (front facing) so the second platform could move to the right. I hinged the 3rd platform to the second platform on the left so it could move to the left. I connected cylinder 1 to the base and bottom platform. I connected cylinder 2 to the bottom platform and the second platform. I connected cylinder 3 to the second platform and the 3rd platform. When cylinder 1 is triggered, it lifts ALL three platforms. When cylinder 2 is triggered, it lifts the top two platforms. When cylinder 3 is triggered, it lifts just the top platform. Cylinders were two inch diameter with a 3 inch stroke. Hopefully you can weld as I don't see how this could be make out of just wood or steel with nuts and bolts as it shakes a TON. Best of luck!