Swap idea for 90 wagon

i've had this idea festering in the back of my head since i first came across my wagon.  i'd like to try and find myself a Z24 and swap that complete subframe (motor, trans, the whole rotating assembly) and use the little 2.2 for something else.  i know for a fact that these wagons came with the 3.1 liter ABS setup and whatnot, so i figure it wouldn't be too bad.  i'm not going into this blind or anything, i do know how to work on cars, i would just like other people's opinion on what my ideas are, and whether or not i should park her and butcher the crap outta her.  =] has anyone seen or done this themselves? any tips or pointers? any info would be appreciated,  Thanks! (there she is on the right, and my summer ride on the left)