This would be a great fight. I can't see Stevie winning though. He ALWAYS got hit, even in his best performances. I see him tattooing Chico over stretches, but ultimately stands in the pocket too long and gets tagged with one too many of those short, murderous hooks. Chico KO 10.
Stevie had a good chin, though... I think it's conceivable he survives the bombs and wins the decision but I don't think what you are saying is implausible either, mind you
This fight could never have happened. They were friends. So no point in discussing it. That's not what this forum is about.