Since I will be moving my boat forward on the trailer I will need to devise a way to support each side in the back along with a support for the front bow. Would I be okay using cinder blocks and placing a 4 by 4 by 48 inches long for both sides on top of the cinder blocks along with a hydraulic jack and a piece of 2 by 6 by 36 inches for supporting the bow? Would this work?