Couple of ideas: stash a frozen bottle or two on the bottom of Mosquito Ridge before the bridge. That way you'll have water for the climb out. There is a spring of fresh water at about mile 32 on your way to French Meadows. I wish I could give you the exact coordinates, but this is from the start of the ride. That should be enough to get you back to your bottles. Note that you'll have to walk around a rock slide at the bottom of Corkscrew. I've done it, so its completely doable.
Enjoy your ride,
BR