Similar issue to us. Got another farrier, he did not use front toe clips, made the shoe wider at the heel as well as longer to support the heel, and brought back the toe. I asked him if it would help if horse was barefoot. In this case he said there's not enough hoof to support the foot comfortably, but maybe later.
My horse will wear bell boots for turnout for the next 3 shoeing cycles until the heels come down and back. He is already starting to move more comfortably but we have quite a ways to go before he is back to where he was, hoof wise. Good luck!