Hello Ed. I don't print the comics, mainly as it costs a lot in paper and ink, but also because I have a big physical collection already and not a lot more space. Your dimensions for ga books are about right but American comics have changed size over the decades. And non-American comics are a whole different thing, coming in all shapes and sizes, from books the size of fag packets to various landscape sizes throughdifferent sizes of tabloid and almost broadsheet. You've got me on my hobbyhorse, so I'll get off again before I bore you to tears.
The important thing is to enjoy the comics.