Two 18 ft stands: https://cedarslink.com/products/two-colossus-18ft-ultra-heavy-duty-tower-lifter-crank-lighting-dj-concert-stand-w-outriggers
Two cubes: https://cedarslink.com/collections/12x12-cubes/products/lk-cub-universal-square-corner-junction-box-6-way-cube