For touring I travel with a 28mm 2.8 35 to 90 3.5 to 5.6 and a 105mm 2.8
If trip will include landscapes or wildlife 28 to 105 4.5 to 5.6 and a 300 5.6 prime
If trip will be mosttly indoor shooting like a musume or the like 28 2.8 50 1.4 and 105 2.8 or 85 2.0
In addtion to the 35mm I also carry a Pentax K 2000 for with a 17 to 55, if a lot of bad weather is expected I will include a Minolta Weathermatic other times Canon III G 1.7, one flash. I usally take a SF1N, and PZ70 which I leave in my luggage for a backup.