If anyone else is interested, this is how I solved it:
I created a custom feed as a page template. As RSS 2.0 doesn’t support images for each entry/item, I created an Atom feed instead; all that contains is the image and the text as I have it formatted in my question above. Then I use the facebook app RSS Graffiti to automatically import it, final result:
The benefit is that the feed can be used elsewhere too.
Alternate Solution:
If I wanted to use FB-Connect, I think a workaround could be done in the form of hiding the description from the post type, and then populating the description field. This way, image & text could still be passed through to FB.