Hello, yep, that would be your best bet for those three.
Just be aware that by that time, the sharpies are getting wise and may not hold as tight like early in the season. You'll still be able get some, but you'll be walking a lot longer and further.
As to Huns, they are pretty much a bonus bird that you'll more than likely bump into chasing pheasant rather than trying to hunt them specifically.
You can easily hunt the prairies and short grass for sharpies and hunt the thicker cover for pheasants the same day.
Anyway, best of luck to you!
Stay well my friend
Greg