Well I haven't gotten a chance to test it yet hahah I DO NOT plan on lifting it with a full tank on it, I don't even think I have the strength lol I plan to be able to lift it with a tank 1/3 full of water for when I move (I'm in college so it happens alot). I'd be surprised if it couldn't even handle that, but who knows!
I'd be surprised if it DID hold. Leverage is on the tanks side here. Use the short handles as the gimmick but leave it so you can get them out. Then get a dowel that will span the entire tank and leave you enough to grab hold of. Then you have a continuous piece.