I am sorry to say it, but if I knew how to get a hold of Max or Burk, I would probably not tell you. (And I don't know anyway.) As far as I am concerned, their obligation to help us ended the day that WRV stopped paying them. I hope they have found something else to pay the bills, and that out of kindness they monitor this forum and will help whenever they can and feel like it. Both are great guys and I wish them the best. But they owe me nothing. They were just employees. Very good ones!
Now if I had a number for Ron Doyle, that would be different!
I think if you look at the posts here about the radiator repairs that people have done, one of those shops should have some ideas of where to get bushings and mounting hardware.