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I'd try that but monitor closely.

Given the availability of several larger females and the quickness of the mallard, she may not be bred or at least not excessively. I'd keep an eye on things and have a plan 'B' in mind.

If they have access to swimming water, a very large drake may inadvertently drown a smaller hen as 'getting the job done' can take longer when the drake is much larger. There is also the possibility of injury if breeding on land.

The breeds you mention are all mallard derived so they can interbreed and produce viable, fertile offspring. One drake to one duck is generally not a good ratio as drakes are particularly aggressive sexually. A call drake might be better for mating with the mallard.