Dude when it comes down to it and engine swap would have nickel and dimed you to death, youd see if you tried it. Even if you made all your own motor mounts and stuff you could do by yourself, youd be suprised what will kill you. I swapped a 22re into a truck originally equipped with a 20r and a 4 speed manual and right down to throttle cables, wiring, swapping ingnitors, etc etc etc, a lot of little needs rear there ugly head when you get the old motor out and the old tranny mounts cut off. Good luck with the new to you engine. I've never done a swap like that but I would almost say that a 2wd oilpan would give you more clearance, I know that on a 2rz or a 3rz you actually put a 2wd oil pan in to clear the front suspension but 22r's may be different.