What are you going to do with the 20 phones? I have visions of them being networked together into some kind of proto-Skynet....
They were replacement/RMA units for the ES400s at the hospital my sister in law works at. Most of them are brand new but they were going to be destroyed because of some recycling contract. A bloke i know managed to liberate a box of them i and got my hands on one via my sister in law. But every battery is dead.
I'm gonna slam in the new batteries ans sell them off. The retail at about 500€ over here. Most of the units i got were brand new. Some were even sealed in their original packaging.
Btw, according to the manifest, they retailed at 1500€ in late 2010 / early 2011.
Sounds like a tidy little profit in there for you; great idea!