Tim-
I haven't done it yet, but am about to. Looks like it'll take a little strategic hacking, but not too much. First thing you'll want to do is rework the IC.
You have to change the inlet, as you can see from your IC, the inlet pipe would be facing into the radiator if you were to mount it in your 2G. Cut off that inlet, and as you face the IC rotate the inlet pipe 45deg. to the left. I would probably upgrade the inlet/outlet to 2.25" while your at it. The IC outlet pipe you can get away with just shortening by chopping off that long part running over the top of the IC. Leave the "close-to-90-deg." bend (elbow)on the IC, you are just shortening the outlet pipe at this point. At the end of the long outlet pipe you just cut off, you'll notice a little bend (25deg. I think). You can chop off that bend portion and re-weld it to the portion of the IC outlet pipe that you didn't hack off the IC.
Damn, this is gonna take a while, give me a mail if you want. Be happy to give you any info I have, I don't want to write a three page mega-post here.