I would check anime taro.  Last time I looked 
through all their GW cels, they actually had 
several of both characters. It just depends what 
pose you're looking for.

Unless there is a specific sequence you're 
looking for, I would also try a lot of the dealer 
pages. I've seen a couple of them around. I'd 
also keep a lookout for updates. They usually 
hang around for a little while longer than the 
boys.

Hope that helps!