Thanks for the replies!

The gravel I’m on isn’t too bad, mostly similar to rail trails (crushed stone) but you never know when a road will have sections of wash board or have been recently graded.

I’m carefully thinking of the bags I’ll need and where to put them. I have a small frame bag that is 2.5L or so and doesn’t interfere at all with one of the bottle cages. I have a container for tools and things that goes on the third water bottle mount under the downtube. I already have a 15L seat bag but on this bike the saddle is consuming most of the rear part of the rails so I either need an adapter for larger width rails or a 0 offset seat post give more rail (that’s getting pricey). I’ve used the seat bag on other 2-3 day trips.

One day I’ll consider a bike for self supported touring / bikepacking but for now I’m just trying to squeeze in short adventures.