I've never worked in Unity, and as a coder I'm kind of lazy (when I'm trying to do something new, sometimes I know there's a better way, but...). I'd love to contribute, make suggestions, and help out generally, but you'll need someone better at code to lay a solid, efficient groundwork and fully implement. Once a framework is largely in place (for whichever system) and adding content is mostly copy/paste/edit, I'd be pretty handy for fleshing out extensive branching and procedurally generated content. I can't get enough of games where every playthrough is different. :]