Tail light set will set you back anywhere form 750-1200. Depending on the condition and if it’s a complete set i.e. boot lock set. Mine cost me RM890 plus resetting the boot lock. But i had to modify the wire harness.
You can also purchase new ones from wing heng should cost you about RM1400 I think.
Body kit? well you have limited choices here, so custom make one, or you'll have to go ask around fiber shops everywhere. I know, there is a tom’s kit in Daichi (did I spell it right) in sunway. When you fine some good ones let us al know.