Well, by that definition, Project Gutenberg can't claim copyright either - typing a novel into a computer is also not creative. I don't know that I'd actually bother to try to sell it, but I'd certainly be annoyed if someone else did.
I chose Word because I'm familiar with it and I've never had any problems converting between it and html; I've saved LM as html and it looks fine, as does the pdf version.
The only remaining issue is that the PG version has a list of illustrations which are html links, I haven't found out yet how to set it up in Word so I may have to do so in html. I may also post a prc version without illustrations - I don't find the illustrations add anything in this particular work.