IC bell mouth is simple... just bell mouth the inlet to the IC... dremel won't crack a sweat.
The upper IC matching isn't bad either, but I'd rather use something a bit better than a dremel for it. It could be done with a dremel, however.
It's a good weekend project to do these. Buy a new throttle body gasket, buy an upper intake gasket, get some PCV's, some vacuum line. Tear your IC off, throttle body off, upper intake off. Check out the vacuum lines, replace as needed, replace the PCV's. Use some carb cleaner, soap, Simple Green, degreaser, whatever.. on the throttle body, and inside of the upper intake. Clean the upper intake after you do the port matching, so you can clean out all the metal material. Use the carbon deposits as a guide where to do the port matching. I have pictures somewhere, of the port matching I did on the Typhoon. YOu can also clean out the intercooler at this time too.