forget adding bits. for now.
concentrate on regenning the car. your bushes are going to be shit. thats the first thing. 800 dollars later the car will feel fantastic.
then its time for mods.
first up. front and rear sway bar. makes a hell of a difference and costs shit all.
suspension. get the best you can afford.
wheels and tyres, nice and grippy.
strut braces. imho they dont do shit but they look nice!
then start looking into camber/castor arms etc, and finding a good wheel setup guy.
go.