It sounds like you're getting a raw deal. IMO, the outfitter should honor the terms of the original agreement. It appears he is unwilling, or perhaps unable, to do this. I read Shockey's article and it was a bunch of self serving BS. Ultimately, I might just pay the extra and go on the hunt. It may take a year or two to rebook elsewhere and I'd not want to lose the time. There's no guarantee of tomorrow for any of us. Out of curiosity, will your total be greater than the 2021 price that the new owners are charging?