I used pieces of aĺuminum "L" shaped metal for frame n smalĺ metal screws to make tin metal sheet hold it all together. Two tin rods with weather strip door foam ontop wraped in blk tape for hull guides. Flat bar for boat stop n trailer tow bar. 4slash 2wd tires/rims on threaded rod with brass tubing sleeves between frame rails n r/c wheel bearings to keep it rolling nice. Finally , off road red strip lights for tail lights n clear lights up front for night loading ,all hooked to trxxas r/c battery on front of trailer sitting ontop a piece of residential foundation vent screen cut to sz n held down with screws. Blk paint,a few stickers n its worked great for long time now. Goes over any terrain easily.