Enjoy your trip. I love that route.
Lots of swimming, and wildlife. I looked in your list for summer season gear, a bear canister, a contained stove, and saw that you will be bringing a head net. Looks good.
If you have not been on this route before, the mosquitos are very heavy, but there are lots of granite boulders surrounding the lakes that give some respite (except at the actual Rae Lakes mid-point, which has been the toughest spot for me to avoid the mosquitoes.