For a short trip like that, almost anything will work. However....
My biggest concerns about that particular bike is the gearing. If you can lower the gear inches to 26" somehow, you'd be OK.
Heel strike could be an issue; might be doable with 2 small bags. Or you could put 2 small bags up front and pile a bunch of stuff on the rack, and not use rear panniers.
Tire availability and frame integrity are minor concerns. For a ride that short it's unlikely you will have a total tire blowout; if you're concerned, bring along a spare. Steel can rust, so I'd carefully check the frame.
Is it my imagination, or are the shifter cables from the DT to the handlebars stretched ridiculously tight?