Free: Contests & Raffles.
That 4th buck is a dandy. I agree that at this point they are all done growing.
That's a great thing you're doing for him. My dad started me hunting and was my hunting partner for 20+ years. I wish I could have done something like that for him but he died before I got a chance. Our last hunt together I got a cow and barely legal mulie with my bow in the same day. He must have known he wasn't going to be hunting any more because he paid to have the buck mounted for me as a gift and I display it proudly on the wall always remembering him when I look at it. Not a trophy to a lot of people, but it means the world to me.