Looks like mostly everything is in the correct location (ie TPS, ISC, water pipes, throttle connection, vac pipes etc). Question is what is the diameter of the throttle plate? If it's the same size or just marginally larger than a VR-4 throttle plate, then it isn't really worth the hassle of swapping on. The N/A 6G Galant throttle plate is often 5mm (~1/4") larger in diameter - that may be a more worthwhile upgrade.
*edit* I guess the best advantage would be the elimination of the stock VR-4 throttle body elbow but you would have to redo a portion of the upper intercooler piping to suit.