My brother-in-law has listed his 30 Gig Mk2A RioCar
(S/N 030102797) and original tuner module on ebay.co.uk:

Tuner: Item number: 5819735960
Empeg: Item number: 5819729079

He also has a spare sled and a broken MK II if anybody
is interested then email paulg(at)pizza.org

Cheers

Paul