On a film camera traveling that far I opt for the 24-70 2.8 and get your negatives processed and scanned along the way Its getting harder to find film processors and scanners.They probably have lots of Fuji Film in india.
I would like see the noise toned down .try some filters in topaz labs like adjust,B&W ,Lens ,detail.They offer free trials.And they have tutorials on you tube etc.