RE: smaller hunting dog recommendation
Short hair?
why short hair and not long?
Good small dogs with longer hair: Britneys, springers, boykins, and Of course smaller Setters.
Good short hair dogs, but not always small: GSP, Eng. Pointers, Weimaraner.
The best fitI can think of for what you want would be a weimaraner. Smaller and short hair, great upland dogs. If you went to a longer coat, maybe a springer or boykin spaniel would work well, maybe a Britney..