Huh... Weird people, to seal something as beautiful as an Amiga inside a box where no-one can see it...
Anyway, I don´t think it´s going to be very difficult to aquire an Amiga. Amiga 500:s aren´t exactly rare, and if you look around in local ads, or perhaps put a wanted ad in a newspaper yourself, I´m sure you could find one... Just make sure you also get a copy of the Amiga Operating System, Workbench, or as mentioned before X-Copy, otherwisr you wont be able to copy the disks.
Just out of curiosity, what Amiga model is it your company is using, and to do what? If you´re not at liberty to say, then you shouldnt, of course...
