WTB: Akai MPC 4000 PC IO BLK Board

Description
Hi,I’m looking for the PC IO BLK board for an Akai MPC4000, part number BA-L4016A502A
This is the L-shaped board that has the battery (coin cell) and the MIDI connectors. 502A only — not the ADDA board (502B).
Condition: working preferred; tested or untested OK if complete (no heavy corrosion).
Payment: PayPal (Goods & Services) or SEPA.
Shipping: to Austria, worldwide OK — shipping/customs by agreement.
Please include: photos (front/back), a clear shot of the label/part number (BA-L4016A502A), and your price incl. shipping.
Thanks!