having played this game, I know its a little more complicated than it seems. (your proposal is basically the same as converting a wagon to a SHO.)
you will need the entire subframe with engine and transmission from the SHO, along with the pcm, all of the underhood wiring harnesses, and the dash and the dash wiring harness.
then you need to decide if you will keep the column shifter or use the buckets and the console shifter. if you use the column shifter, you will need the bracket that attaches the shift cable to the trans from the GL to mount on the SHO trans. if you do this, you will only be able to shift into drive (not 2 or 1) and you will lose the ability to lock out overdrive unless you wire up a momentary switch somewhere to allow this.
if you use the console shift, you will need all the console and shifter and related parts from the SHO as well as the above.
then you need to deal with the fact that the wiring on the 94 is different from a 95. there are 2 places where this will bite you -
1. in the driver's kick panel next to the parking brake are 5 large connectors. 2 of these are populated differently between 94 and 95, and you will be required to make an adapter harness to get that straightened out.
2. at the passenger rear of the engine compartment, the connector for the rear abs sensors is different between 94 and 95, and again you will be required to make an adapter harness to get that straightened out.
that is pretty much it.
btw, turbo79, the torque steer will be exactly like a SHO, because the suspension and drive system at that point will be the SHO.