That is exactly what we did when my son and I hiked Whitney back in
2001. All food and smellables (toothpaste, etc.) were in the bear (marmot) canister. We carried food, water, rain gear and emergency supplies in day packs on our summit day.
Nobody (two-footed or four-footed) bothered anything at Trail Camp.
The key is to keep the mini-bears out of stuff. Real bears aren't likely to be that high but the marmots will make a mess of stuff if they smell anything yummy. They'll gnaw through a pack or a tent if they think something edible is inside.
One other suggestion...don't leave anything light enough to blow away unsecured. When the breeze comes up with the afternoon t-storms, you may have to search far and wide to find stuff that has blown away.