Nothing wrong with your grain bill. I haven't used oats in a wit but can't see a problem from it.
If you can find the find white wheat malt it is very good for the wits. Do you have a wit yeast? You should.
Also coriander and orange peel. I don't like more than 1/2 oz of each.
I like Sterling or Saaz and Styrian and EKG as the hops Aiming for 15 IBUS and a mild aroma addition.
Low 70s for initial ferment. Bright in mid 60's.
On Tap: 1. Kelly R. IPA, 2. Roter Hund Hefeweizen, 3. Bud Killer Blonde, 4. Red Dog Pale, 5. Roter Hund Oktoberfest, 6. Pumpkin Ale, 7. McRed's Stout (with new nitro system and stout tap,) Cream Soda, 8. ESB # 3, & 9. Ordinary Bitter.