What's your planned itin as of now?
A quieter bay close to Halong Bay, 2 days, 1 night in boat.
Sapa: 2 nights in train, 2 nights there.
Hoi An: Few nights including a shabbos
Hanoi: First shabbos, our base btw travels
All subject to chg of course.
Keep in mind I'm going w/ kids, so we're somewhat limited w/ the types of activities.
And I don't think the the suites in the train are on the same level as SQ suites, but on the plus side, they're a bit cheaper.