Couple things I didn't see mentioned,
the intake will not clear the hood,
the 5 speed shifter will sit back about 3" compaired to where the 4sp shifter sits,
the 2.0L mounts have to come off the frame Rails and the 2.3 mounts have to be bolted or welded in place,
you'll not have room for a mechanical fan unless you use a fan from a fox body inline 6 car.
and then there's the wiring, you'll need to spend some time sorting out the computor wiring, you really only need to use 15 wires to make it run correctly, more if you want stuff like CEL, Fuel switch (did they have that in 86?)