Ooooo, really looking forward to seeing this develop!
I've read through the Otherworld rules (well, kind of) and find them quite appealing in that they actually seem fairly straightforward. There's a campaign PDF for it which is much needed, but could do with more depth...... that said it would be fairly easy to add in modified rules and such from frostgrave (I like the adding features to your camp ideas) and Mordheim.
Nice models too, particularly the Dwarf fighter.