Where do you sit when you watch movies, on the bed, or do you have chairs you have not shown in the drawing? If you sit on the bed, and it can't be moved to the left at all, then maybe it would be best to do as I mentioned above, move the left surround to the left wall, and place the right surround in the original right surround location, or place it on a stand on the right side of the bed facing the left walled surround. If it was me, I would move these speakers to a room in the house that will work better for HT.
