I would never fly in minnows. If you're an ON resident bring a minnow trap and trap your own. Something I've done many times.
As far as live bait goes, I've been on 32 fly ins over the years and always bring a flat of worms packed in bedding to tip the jigs with.
Yes, you will catch plenty of fish on undressed jigs. But walleye cannot resist a jig tipped with a worm. You will catch more fish I guarantee. Especially if conditions turn sour and a cold front moves through. Even in the most amazing fish filled waters weather can shut the fish down believe me.
Live bait will help and it's cheap easy insurance.
Regarding Nettogami, I fished it once years ago and also stayed at the peninsular cabin.
We caught zillions of fish, although the majority of the walleye were on the smallish side. I'm sure you'll have a great trip.
Our best luck was had by following the outlet river several km's to another small lake that was teeming with fish.
Good luck!