Backpacking through South-East Asia: zoom vs primes
I'll be travelling to Thailand and Vietnam and plan on doing some documantary and street photography work and need some advice on what equipment to take with me.
Since I'll be backpacking, size and weight are quite an issue and I already decided to leave the 70-200 at home (what a shame). I got some great results with my D750 and a Sigma 28mm 1.8 and my FM2 with a 50mm 1.8 (lenses work on both bodies) when I was in Paris, however the two bodies were quite cumbersome at times and my Tamron 24-70 could replace this setup, making the kit even smaller and lighter (+more versatile).
However, my main concerns against the 24-70 are that it is to big for street photography and that it wouldn't survive the travel since it's build quality is not quite as reassuring as a nikon 70-200's is for example and I would have no backup.
Any suggestions on that or travel photography tips on those countries in general?
Thanks in advance, cheers from Austria!