Since your shocks are not blown, do exactly what Kirk said. You'll probably be amazed to learn that isn't the fastest the car can go as-is. Besides, at that milage you're just breaking in the suspension. Save your money till later on when you really know where it should be spent. Maybe you get serious and get a high end race suspension? Maybe you don't want to autocross anymore and want to try the whole high performance driving event thing? Maybe you want to stay in a stock class? Maybe, maybe, maybe... That's just it, you really can't know at this point.

A friend of mine just had to purchase a suspension for his car that he "knew" after just a couple of events he'd use autocrossing. Just a couple of months after he sold that car, bought another daily driver and a pre-built racecar. LOL