Hello.
There are plenty of bodykits to choose from , its all up to your taste.
The ones i would recommend would be these.
If you want a decent bodykit Mazdaspeed Bodykit , many Rx8s' in Pakistan have them.

This kit looks great , only one rx8 has it which is the tokyo drift rx8. But you will have some problems over speed bumps its called Veilside Bodykit.

This one is a straight bolt on to the original bumper which is the easiest and the cheapest alternative.

Many kits but its all up to availability , to your taste and practicality.
If you dont get the paint to match it will look horrible so first get a good painter.
By the way , i like your new avatar.