Why don't you use Wordpress? Free plugins like s2member are available; DAP and Wishlist are great paid options. Easy to use, too.
It looks like you're not looking for someone who can scale and become a full fledged CTO (or you might not even need one), so try to look at it as a founding engineer hire instead. With early founding engineers, you can sell them on things like: - opportunity for learning - understanding busin...