Sounds like my kind of trip, especially given that you appear to be doing all of the salient legs in First Class. Maybe next time you could bring a Ziploc bag along and sneak a load worth of veggies/rice/potatoes along to accompany the meatloaf for the overnight run to JFK.
I haven't done any big time mileage runs (or at least none worth reporting on) since my
87000 mile jaunt back in 2012. I envy you AAdvantage elites for being able to re-up over so short a time span! ^
Good luck with this set of flights!