I like your re-working of the list. My two cents, if it were my list:
0. Well-tailored pants in a dark color (mine are usually black)
0. Interesting, well-cut jacket (maybe leather?)
1. Interesting cuff and earrings (personally, I dislike necklaces)
2. Well-cut shirt of woven fabric (style and color depends on the individual)
3. Scarf (but only if you like them-- personally, I adore them so I get to have 2)
4. Comfortable but stylish walking shoes or boots (I need a little heel, though)
5. Skirt or second pair of pants, or even a casual dress if that works for you
6. Weatherproof coat that does not look like athletic gear. I love trenches, but they don't love me back. My go-to coat is a black, packable, swingy, European style that I paid a small fortune for but which looks fabulous day or night.
7. Straight-cut, dark-wash jean (I'm a traditionalist here)
8. Interesting watch (and sunglasses)
9. Handbag--big enough to hold essentials but not so big that looks like I'm planning to spend the night.
10. Knit top(s) but mine have to have at least a small sleeve. I'd also like a cardigan, thank you
11. I'm with you on your LBD sheath style here
12. Dressier shoe or sandal.
That pretty much resembles my typical travel wardrobe. I can go for 2-3 months with those items (with laundry, of course!) I'd get bored, but I think I could get by in almost any setting with that basic wardrobe.
Hey, this was fun!