I wouldn't mind having a turkey or two. They would be for food. Ducks? Never again! I had six ducks a long time ago. I still shudder when I remember the mess they made......
That's not a lot of money to care for 11 birds plus more chicks. Feed is not your only expense. Grit, oyster shell, wormers, poultry dust, treats, bedding, nest materials, fly control are all additional expenses. Are your grandparents going to help if you happen to go over budget?