well, Depends what you are looking to do. Swap just the SC, no. That'* a lot of R&D and I believe the way the previous posters read your original one.
You could swap the whole drive train (engine, computer, trans, axles, wiring, misc) over from a 97-99 (others possible) and achieve better results. This is easier than what your original was getting at, but still requires time and money, although could be done fairly inexpensive if you find a donor car at the right price (search Frankenbonne)
What others will tell you is that if you want the S2, just sell your current one and get a 97+, but that may turn out to be just as costly in the end.
Any way you look at it, you are going to be spending time and money on it. If you can do the work yourself, you'll be able to save a lot of money assuming you have the tools and resources.
Probably not worth it in the long run though.
2007 Saturn Aura XR | 1970 Chevy Blazer 4x4 | 1970 GMC 3/4 Suburban 4x4