I too think that the TMIC is the biggest problem that you guys have.
Having just replaced my WAI TMIC with a FMIC, I have seen a gramatic reduction in charge temps even running higher boost levels than before.
Since adding and FMIC seems very difficult with the SC outlet and TB inlet, maybe a water spray system for th TMIC would be a better solution?
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There is a series of articles with measurements on the above link which are well worth reading. The other option is to try and get a water spray tank from an impreza and plumb that in.
Or something like this :
http://memimage.cardomain.net/member.../720526_55.jpg
The other option is to run water injection after the TMIC, this will greatly reduce inlet temps but obviously is a finite solution, the water will run out!
I think that a scoop at the windscreen for the CAI will not work particulary well either, air at the base of the windscreen is trying to escape the engine bay at high speed, just at the point that you are trying to ram more in!