There are also lighter-weight inexpensive cannister stoves. You cold shave several ounces in this area.
As stated before you could leave the Kindle and read on your phone.
Also, looks like your wall charger only charges when actually plugged in, so maybe going to a beefier system that is also a battery-type recharger would be a wash i.e. take out Kindle and wall charger, add a beefy backup battery recharger for your phone, etc.
All that said, a base-weight of 11ish lbs is pretty darn good. Make sure to do lots of gear testing and prep hiking before you go to make sure you have your bases covered. You'll especially want to get out in nasty cold weather because you're guaranteed to experience some once you start your thru.
Best of luck!
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