I say go with option two, for a couple of reasons.  First and foremost, it's already been a few days since anything's happened with the story, and I wouldn't want anyone to have to wait for who knows how long until we found someone else that would be interested.  Plus, I wouldn't want to find someone, only to have them lose interest and then be right back where we are now.  Not that I'm against writing with new people or anything, but at least with the three of us, interest is guaranteed to be a lasting thing, at least I'm assuming so.