ok, I don't own amazon, and to be God's honest I am still a little frightened of the one I have worked around. but here are few things to try to win him over.
1.every time you walk by the cage put a treat in his dish, mind you it doesn't have to be a big treat either, a sunflower seed or 2, a Nutriberry, a little piece of banana, just something. don't turn around to see if he runs down to get the treat either, just keep on walking away.
2. sit beside the cage and read to him every day, it doesn't have to be anything fancy either, the newspaper, children's books, the funnies from the Sunday paper, a recipe, anything. keep your voice soft and quiet. remember loud noises startle.
3. watch his body language, eyes pining, flaring feathers around the neck, head and upper body, lunges, beak snapping. all these are huge signage that the bird is upset. With Monster a YNA, the swaying from side to side is the one I watch out for the most. when he starts swaying I know to back up as quickly as I can.
4. it might be well worth the $ to get a T-stand with longer pole on the bottom to move him anyplace. remember no shoulder sitting either, birds IMO have to earn that right.
5. lots and lots of patience.