I live up on the front range of the Rocky Mountains, house is above 8000ft. I have a 2013 Leaf, no awesome warranty. And I have essentially been doing what you're planning.
I try to accelerate as fast as possible. Highway speeds in the area have posted limits of 75mph, traffic flows at 85mph and higher. In the Prius, 100mph-110mph speeds are common, and I am still getting passed. The Leaf is limited to 94mph or something, but I have kept it there which is long distance high current discharge of the pack. I charge with L1 everywhere which is worse the battery as it spends more time charging, and that is one factor in oxidation. I drive with sticky winter tires, all year long. Sometimes it snows in June, sometimes it snows in August. So it is not worth it to switch back and forth. I park it outside 100% of the time. The luxury and collector cars occupy the garages. It gets beaten down on with the sun (we get 100F+ days) and it freezes to where the battery warmers kick on (we get to -40F too, note the minus). It has sat for 2+ months at 100% charge on our East-Asia/India trip. It charges to 100% always. If it is not being driven, it is plugged in charging, no timers or any of that crap. I get home, it plugs in. If it charges to 100% by 12am, it sits at 100% until it gets driven next which may be days later after a weekend trip.
This Leaf is treated like crap. It is used and abused. There is no babying.
Last I checked in April, there was 23K miles on the odometer. It charges to 100%, all bars remaining. GOM still shows 90miles on a full charge. Real world mileage has been pretty constant but it does vary greatly with our climate and terrain. But if I drive the same way on a day that is about the same as another, it uses about the same %-of the battery as it did when it was new.
2013 Nissan Leaf SV with every option
2013 Prius C Package 4
2012 Lexus RX450h
2006 Prius Gen II, pIV
2005 Honda Civic Hybrid
2001 Honda Civic EX
1997 Honda Prelude SH
1981 DeLorean DMC12