Thanks. I am pleased to see I correctly surmised this was an AONE3. Such weird terms in air travel.

More questions since this looks like it may work.

The estimated fare for the AONE3 is 10,600 v 19,849 for the separate full F fares. Does this difference seem reasonable?

Will I be able to select my seats at time of purchase on all flights as one normally may with full fare F?

How far ahead should one generally purchase tickets of this sort?