I am with iammcuriositycat, as far as recommending you consider wild ducks for your pond. I think that some people can manage domestic ducks on ponds very very well. But if you are new to ducks, you may not be able to anticipate dangers to the ducks, and could cause yourself some unnecessary grief.
Please consider building duck nesting boxes and planting a food plot so that some of the beautiful wild ducks can enjoy the pond, and in turn, you can enjoy them. They are more suited for living on a pond that most of the domestic breeds of which I am aware.
Ducks are wonderful! And perhaps you can get some good advice for your area for having domestic ducks on a pond. Up where I am, we have fishers (a four-legged animal), raccoons, skunks, possums, bobcats, snapping turtles, hawks, owls, coyotes, foxes, domestic dogs and cats, and I have probably forgotten a few. Domestic ducks for the most part cannot fly away from danger. They are, pardon me, sitting ducks.
So, I would consider what kinds of infrastructure would be required for domestic ducks to survive the environment, and what kind of infrastructure that would encourage and assist wild ducks to inhabit my pond, and decide which way to go.
Good for you for looking into this ahead of time!