Just had a thought that may help a few people out. On the Tbs on my X11 engine (basically a blackbird) there's an electrical MAP sensor. It's has 4 pipes that come off each barrel of the TB through a couple of joiners and on to the sensor. Thought this may come in handy for those struggling to find something suitable, as it's obviously designed to handle 4 seperate barrels. It may take a bit of fettling due to having unknown output values, but a simple look up table should sort that out.
Hope that may be of help to someone.

Are you giving it away, or just suggesting it as a useful part? I have blackbird throttle bodies would it be the same?

Sorry, suggesting it as a useful part. Yes the blackbird one should be the same, as the only difference between the engines are the cams and the X11 is a 5 speed.