But I can imagine so well Opey to be published in Heavy Metal for example ´cause the magazine has the same kind of disturbing atmosphere in most of its comics (although naked women get too much attention in some parts and covers.) You will be dicovered if the magazines know what they´re doing.
I would freak out if I saw a walking, talking missile. After reading about Opey, I'm afraid that if a day, when I see a real missile, arrives, I won't be able to resist calling it Opey and start making conversation about world peace or truces..
To get the wide range of lines for my drawing, I use one one of those old pens you dip into an ink bottle (a Hunt-108 knib, to be precise).
To clean my artwork, I always scan them into Adobe Photoshop and remove all dirt, inksplotches, whiteout stains, or undesirable lines. I also draw the borders of the panels using the Line tool in Photoshop. It can be time-consuming, but well worth it.
Opey is able to speak by...hmm...good question. I guess he speaks through the magic of being a cartoon character, the same way he was able to clean off his plate at breakfast (on an earlier Opey page). Opey defies physics, although I do know how he was created (but that's explained later in the story).
By the way, I don't think your questions are stupid. Ask me anything and I'll do my best to answer (with this clunky brain of mine).
I have heard of "Lone Wolf and Club", I've seen Goseki Kojima's artwork, and am deeply humbled (and appreciate) the comparison between him and my work.