The Paranoia Agent/Sailor Moon crossover is the one I have my eye on.
Would selling right here through dA work? They handle the actual printing/shipping and pay you a percentage, right? Or is the percentage too small to not make it worth it?
Also, in my experience, cardboard tubes are wonderful for mailing prints. Some people prefer the flat boxes, but I frame every print I buy, so being rolled is a non-issue to me. (Yours got framed yesterday! It lives by my computer now.)