I'm not from New York but fancy myself a pretty good letter writer

I thought i would give some comments more to the form than the subastance, which I guarantee can be just as important in getting someone to hear what you're saying.
If you get someone of authority to read that whole letter then my hats off to you. Don't get me wrong. I read the details about the bucks on your land and I also read with interest your proposals. My concern would be that whoever receives this at the DEC will just see a novel and not give your key points thier proper consideration. It's just too detailed and long winded.
As interesting as it was to read the details of your lands herd I would suggest condensing this down to just the basics. Offer detailed data ,as you already provided, if requested.
It appears you already sent it so I might suggest defintley going with a follow up letter asking for a specific response. Attach the original and re-send it. It might take a couple mailings to get them to take you seriously and read the whole thing carefully.