Good tip, thanks. I haven't looked at how to book and what codeshares or not will maximize our earnings, but competent agents are definitely something we want.

We have been focusing on the destinations first and are looking at shrinking the trip - too many days away from home (aka too many days uninterrupted family time) vs. too few nights at each destination. Solution: cut number of destinations. This allows us to add more to the 2024 phase as well. So now we are looking at ditching SIN, which means all the flights out of DOH we might use are middle of the night, which means we will probably skip DOH completely and do OSL-xHEL-HND and Asia from there.

Just saw in another thread the idea of starting in KEF. That could work pretty well, since we're based in Boston.