Great start!! Are you going to have access to the storage area created by the boxes? Also, if you have not made the backs yet for the seats, I would suggest making sure to have some sort of a slight angle in them, as straight backs are not usually comfortable. When we cut down the single pole for the table, we had quite the time getting the cut end to fit into one of the "holders" that we bought. I had to cut 4 lines into the end and squeeze the pieces together so that they were angled enough to fit. I hope what I am describing makes sense.
One more thing. Make sure the table is securely mounted. We might have gone overboard, but now we find ourselves using the table to help get down from the bed area by placing one hand on the top of the table, so it takes a lot of force. Nice having it secure so that we can use it that way.
Del