That's a pretty high number. What do you plan on doing to the engine to reach those HP #'s?
As far as clutches go, I personally am planning on buying an ACT clutch for my 2.4L Taco. Their modified performance clutch can handle 35% more power which should suffice for my purposes, but might not hold up to your power demands. Yeah, you might want to see if the stock tranny can handle that kind of power.