Two thoughts:
"Perfect use" - While I think the car will mostly likely handle this mileage, "Perfect" is an overstatement, in my opinion. The battery ages with each charge/discharge cycle, so using the car in a way that will mean charging more is not "perfect." The negative of battery degradation (which seems to be less than originally anticipated) is offset by the gasoline savings, but "perfect" implies that the battery thrives on this treatment, which it does not.
Free supercharging - Because of the degradation mentioned in my previous point, the last thing that OP should want to do, IMO, is to subject his battery to fast charging frequently. I'd think that babying the battery (not charging to 100%, not supercharging frequently) would be the best recipe for getting a battery that lasts.