Well, you could still remove the stickers. From the looks of it, the paint on the bike is okay. Nothing a little black nail polish couldn't fix in the spots where it is scratched.

A spray-paint job will certainly make the bike look much worse. However, if you prepped the frame really well and had it professionally painted, I'm sure it would look amazing. And you could pick your colors, too. It just didn't sound like you were set to drop any real money into this bike. I just hope you're not planning a spray-paint job. That would be a shame.

Best of luck with your new ride, however you decide to customize it!