Go with the Kuiu w/o a shelft over an Eberlestock with a shelf. There is a mixed opinion on the load shelf. Some like it, some don't. I have never used mine (Kifaru Reckoning), and unsure of if I would try it - but I guess I have the option; and I like having options.
But definitely out of those two bags I think you should go with a Kuiu. An even better recommendation would be to look at the Minimalist setup from Stone Glacier. Run that for a year and then purchase a bag and give the shelf a try. You get a way better frame from the get go and can upgrade later if you see fit. You might just like the minimalist set up on it's one and find that you don't need another pack.
You could do something similiar with a Kifaru frame/cargo panel.