Wow, that's tough Cameron. I wish I had an answer for you, or at least one that didn't involve an unlimited bank account. I'm always saddened by news that shows one part of the country suffering in the grip of a relentless drought, while other parts are experiencing their highest water levels in decades. Some things are just beyond the scope of human understanding.
Sometimes, all you can do is accept the fact that the goals of a pondmeister are too far removed from the goals of mother nature. Given enough time and resources, one can sometimes contradict her plans, but, in the end, she always wins. Hers is the final word.
Keep your head up, remember, all it takes is one or two good thunderstorms to make a world of difference.
Whatever happens, you will have the knowledge you gained from this pond to put towards your NEXT pond. And I'm betting there will be another BOW sometime, somewhere, in your future. Life is kinda' funny that way.....