A series of plastic bread trays held up by 16- 20 red 10 holed bricks using VHD zip ties top and bottom ideally with some Osage orange sticks and small limbs also zip tied into place with just 2 14" cement blocks on diagonally opposite sides, this ensures that even on a steep incline the free end will tend to dig in, on a flat bottom it should settle at an angle eventually and provide a predator hiding place beneath it...