Dragons and opposable thumbs are both very good things! So are metal scales. Maybe if they do a two arms, four legs, two wings type of deal, like a centaur where both halves are dragons, that would be less mechanically awkward? And wings are nice to have but only if she'd actually be able to fly with them, if that's not workable or would involve the wings being impractically enormous then forget it.
Human-passing robotic duplicate that looks like her with the option to change colors is good; less chance of ending up as a vagrant.
Both chassis should be designed with a focus on survivability--fireproof, waterproof, vacuum-proof, and EMP-proof. Since she's going to be software she wants root access on herself, not that she knows how to use it yet but someday she will. Various clever tools built into her limbs like a living Swiss army knife would also be pretty sweet.