I agree, if you were poorer I'd say that you can get by with Sushi but considering you're buying things like Foragers and Moliones.. (Foragers I consider to be last-upgrade onry for a DD considering its terrible cost:benefit ratio, Moliones only good with the right STP setup .)
Considering you're buying those you can easily afford to pop a Marinara Pizza. If you can't? Stick with Amemet+1.
Hell you could easily pop Crab Sushi's (4k a stack last time I saw) on Colibri which is far more important than getting these complete finale upgrades (Foragers/Moliones).
No I'm not rich. I farm my mithran tail off to buy the best gear I can. I'll stop leveling a job for weeks to make gil to buy something I need. When I got vermy it was close to 8M... I started mining/farming/synthing/gardening at SMN 50 and got so sick of Gusgen/Oldton.
You have enough to purchase Foragers and Moliones, that's like 1mil gil.
You could.. not purchase Foragers or Moliones, and use Tredecim and Amemet+1 for basically the same benefit
and eat good food.
You'd be benefiting more by eating Marinara for like, what, 60~ att? Than the 5str and slight dot bonus from the above two pieces. Also being rich kind of implies that you worked for it, nobody just starts with money. Doesn't matter how much effort you put into the gil, 1 gil is 1 gil and buying good food will give you the most use out of that 1gil.