By what I can tell, the 2.0 L used what they called a "Type 1" transmission. The V6 used "Type 2" transmissions. As far as to whether you can swap them out, I'm not sure. They appear to be quite similar, but the V6 may have a different input shaft (stronger?) which means you may need to use a V6 clutch disk.
Just out of curiosity, what's up with your transmission? I just rebuilt mine because I couldn't find a used one within a reasonable distance and price.
David