What will the bike be used for? Street/track or both? I don't see an exhaust system on your list so you may want to consider that. I would be hesitant to increase the compresion on the NSR unless you plan on running suitable race fuel (not pump fuel) even then i imagine the performance gain might not be worth it from a reliability stand point.
IMO getiing the bike Jettied correctly will be the key, and finding someone with the right experience and know how will be difficult in Melbourne, although some other Aussie members may be able to make some recomendations.