I have in storage and in need of repair the original DX15 planet killer. One of the first original props I ever bought and got it for a song. Shipping was killer and the guy who sold it to me recomended someone local. I paid for a crated foam packed ship and got a wardrobe box on a palette. The sphere was torn loose on one of the joints and the aluminum joint on one of the legs was fractured (clean but aluminum welding . . . and repair/weld to 1/32" steel where the mount pulled out). I have kept it all these years (at least 8) but never welded it, fixed it, or displayed it. It is a big daarn thing (4ft footprint due to the legs). The electronics are in place and there is a cable remote to activate the cooling rods and counter.
Still one of the most heartbreaking purchases I made. Should get around to getting it fixed one of these days but I have had several potential welders fall through.
Doc