Welcome to the site. As this car is over a decade old, there is a lot of existing discussions and information that can help you here with common topics like suspension. You may not have known about it, but next time please use the search function above before asking a question. And if you try that a few times and can’t find your answer, then post a thread.
In addition to the link posted above, there is also a suspension review thread in the Product Review Forum. Suspension is not something to cheap out on, save up until you can afford a proper setup and you’ll be glad you did it right the first time.