The biggest problem with " portable" reloading benches is on the upstroke of the press handle where you will tend to lift the whole thing up. I' d have a piece of stout plywood with four short carriage bolts to anchor the legs of the WorkMate using wingnuts. If you can stand a little more height, you could fit the bolts thru some 2x4' s and then screw the plywood to the 2x4' s to keep a smooth bottom. It still would store easily when disassembled, and you would be able to stand on the plywood and hold the bench down when needed. Good luck.