To begin with I want to acknowledge that I have not read through this thread completely but was asked to look at the pictures and give my opinion. So here it is:
The picture of the ear supports exuberent fibrosis (scar tissue) secondary to chronic inflammation and infection. The botryoid (grape like) appearance of the tissue is typical. Unfortunately many dogs of this breed have a tendency towards this. In many of these cases, if the fibrosis is as severe on the inside as it is on the outside, then some patients may benefit from surgery. Depending upon the severity of the fibrosis and the health of the inner ear than either a lateral transection or an ablation will be recommended. This should be further explained by your veterinarian.
I hope that this helps. If I can be of further assistance, please PM me.