I still consider my manga love more as hobby. I wouldn't mind seeing myself working (in the future) in a manga-related business/industry sector but I don't think I would enjoy it as much tbh. ;P
Touring around anime studios or having a guided tour around one of your favourite mangaka's studio/home would be sweet though. If there is one thing I would like to be involved in (as far as a manga-related dream job) then I would like to be apart of a manga exhibition. I would present a variety of manga titles from different genres, one to one sessions or group interviews with famous artists (be it for anime, manga, novels, movies) and other cool stuff. I wouldn't want it to become just another "comic con" though. :S
My title would be: Temporary Manga Curator or something. It would be fun.