Thirteen speeds and a wide range - better to suffer a little extra weight and fit a Rohloff hub.
Worth bearing in mind Herr Rohloff designed the hub because he was fed up with wearing and breaking traditional transmissions doing what we now call mountain biking.
Shand are one of the few makers who have grasped this point with their Stoater.
https://www.shandcycles.com/shop/bikes/stoater-rohloff/