You could use poser's morph brush, and add the draconian wingarms to him. Or add the legs and tail as well.

Tint his skin a similar color to the color of the add ons, and you'd have something useable.

There will always be a tradeoff though between how much work you want to invest, over just buying something you could already use.

 Daio used David to make a Gargoyle a few years back...

Way too many people take way too many things way too seriously.