Eh? There was no such thing. The rarities shown were the A3500 and the NYX prototype. No A5000s.
The A5000 was definitely a DCE product. The board had an AGA chipset, a 68030 and was supposed to get some sort of local bus connection to a device called the BrainStormer... This was a design for a PPC / PCI add-on card made by Escena. This later evolved into.. well you know what :-)
One of the A5000 prototypes should be on show at the Benelux Amiga Show / Benelux Pegasos Show in October ;-)
Cheers,
Ron