depends how much you like your car and how much you want to spend. Definately possible check out www.capa.com.au for pricing. Also check out v8 development section on this site. Depending on how much pressure you are going to push through will depend on how much you have to change. If you are willing to replace some internal components pistons etc you can get some serious power. If you are planning to update your car in the future or have a small budget give it a miss. As they say you get what you pay for.
i got the sta supercharger on my vs manual clubby it can handle the power had no problems with mine just make shore you get the butten cluch for the extra power i`d say go for it and have fun