Ahh man! You got an Evo! In my opinion you have made such a great decision going for a wagon, you won't regret it, everyone has to own one someday haha!
And about that transmission swap.. Well, we don't usually deal with Mitsubishi stuff, but I am confident 200% and can guarantee you that we can can do such job without problems, we can even source the parts needed till Friday and get it done through the weekend so you will be able to "test" it in the back roads at the evening of Saturday properly. Even tho I am taking a break from work personally I can find time for such thing. If it sounds good then hit me up trough phone and we will arrange things, can't wait!
