Hmm ok...I think you have been given a bit of a story, what's the part number on the
ECU? Also it would have been slightly cheaper to offer a wheel without the buttons new so I'm not sure of the logic there?
There must be a list of what the engine got? It will be a 185kw version so unless it got some T series parts I'm not sure what else would have been done during the time.
If it did it might have a t series
ecu which explains why it was perhaps not a stock 185
ecu....cosworth is a stretch even with Tickfords UK links.