For me - Carradice bar bag: route sheet on the top, snacks, camera easily accessible, little side pockets for your lippy/sunscreen, somewhere to stuff sweet wrappers. Barley saddlebag: old, old skool, waterproof, versatile, dry your shorts/strap your shopping on the top, tried and tested ad-infinitum:
WORKS.
Front lighting: Schmidt hub generator, B&M Cyo or whatever, Cateye or Hope 1 back-up, plus head torch. Any decent Cateye/Smart rear x2, but NOT flashing up into my eyes, puhlease!
Yes, modern 'bikepacking' kit is lighter and sexier, but whatever you get,
test it out thoroughly. Once you've set out you'll never get everything back in as neatly, so leave a bit of wriggle room - another plus for the extra straps and flaps on a traditional saddlebag.
Shoes [sandals in my case]: spd every time. Seen a few pratfalls by tired randonneurs over the years, all on Look-type shoes.