Hey mate.
it appears to be the later Pectel board.
would you know the full engine spec to aid the exact knowledge of whats on the chip on it?
id say its worth between £100 - £120 - but that would depend if the chip is written for an engine of a usable spec that someone will be desiring.
HTH
SORRY *EDIT TO ADD*
are you selling the actual P8 ecu aswell, or purely the board and chip?