I did, literally, try that with one of the internal doors. The results were no more impressive than Arsene's
Nobody in their right mind is going to buy this ****hole.
You might have to lower the price a bit then. Have you tried AWIMB's Patrick Vegas? He's a DIY enthusiast with an eye for a deal and a chance to make a few quid. He's just bought a house and loves collecting things so will probably want to buy another one soon.