New here! And looking for some Outlaw Star!

Hey, everyone! I'm very new to the cel collecting scene. I have just a couple cheap cels now, but I'm looking to get one from Outlaw Star, my favorite anime. This is proving to be a lot harder than the other shows I've gotten!

If you guys don't mind, I'd love advice on how to find more cels from this show. I've searched eBay but they don't seem to have good ones there (I'm looking for shots of Melfina in her tube or cyberspace). I've also checked Yahoo Japan and there doesn't seem to be anything there either.

The only other real option I've seen mentioned is to message people here about their cels. And that seems a little presumptuous.

So I guess what I'm saying is, I'd love any advice or help anyone can offer on how to find Outlaw Star cels! I've heard that conventions are good places to find cels, so maybe someone here has connections with a convention dealer or two? (Or if you have any Melfina cels to sell, please let me know!)

Thanks, everyone!