A friend of mine has that one:
needs a gear stick but otherwise it should work. Not powered up for ages.
I doubt however he will sell the PCB alone but I will ask.
Did you find yours from MP Gamecompany? they had one the last time I was over (2 years ago).
ah...and I still need to get back to you on the other parts we spoke about last year (sorry, I moved and life went on).