I suppose it makes the most sense to start with POSTS, since they are the most fundamental component of wordpress. Everything is based on POSTS, changed by taxonomy.
So, we will start here, and then try to sync it, and then try to sync the images as well, and save them to the same path, or at least… somehow try to get them written here.
I can see that this will start to not work very well when you start to change POST IDs. One site may have posts that the other does not and they may be using the same POST ID. This will obviously not work. So… we are not really syncing so much as we are PULL or PUSHing and entire site. This is fine for development I suppose. Thats really all I wanted anyways.