Not sure about the 200. The IS300 has been done though already.
Some one has already swapped the engine from an IS300 into their Celica? I've never heard of that before. The engine that comes in the IS300 is the 2JZ-GE engine, a.k.a the N/A Toyota Supra engine.
With enough money, you could swap anything into the Celica. How much are you willing to spend?