I think you're already on point with the Ripley, that would be my first choice. Any of them would be good, just be aware Canyon has weird-ish sizing. Also keep in mind that very progressive geo with long reach and very steep STAs don't necessarily work all that well for bikepacking. Longer days in the saddle usually require more of a sweet-spot geo, a little shorter in reach, a little slacker in the STA, and a little steeper HT. This avoids having to ride in the attack position all the time. Maybe something like a Diamondback Release 29?