Pesky

Goin to check out a 2005 Scion XA RS 2.0 in Mobile, AL tomorrow morning (10/3/12). 80k miles. No aftermarket rims and not lowered....... yet ;) I'm pretty sure we'll end up taking it so im getting ideas for the future as of what to add, if I ever do decide to upgrade bits n pieces.

So here's a few questions:
-Top speed?
-How would i go about blackboard painting my hood? I've looked for quotes for general painting of parts online and found nothing for local business websites.
-Hows the stock audio system? Bass crackle at high bass levels?
-How much would labor cost to change the springs? Is it doable at home?
-Whats so much different about the RS 2.0? Grill and spoiler are some things i noticed, but what else?

here's the pictures provided. They're not the best but w/e