If she's willing to go for TG
*G, then I'd do that. But for no status I'd go UA
With a bit of creative routings, it should be easily doable.
These would get 47673 miles and TG
Gold is 50K.
Starting from scratch, one makes about 60K award miles with status bonuses. 55K gets you a "Birthday Award" in First to BKK
ex-Australia (must be taken birthday + - 1 month). You also get a confirmed roundtrip upgrade that books into J class, easy to find. This she could use for a whole MEL
metal. And the TG
Gold status is valid for a full 2 years, so 2 years of Star Gold benefits such as lounge access.
If that doesn't appeal to her, then I'd just credit to UA
- no expiration provided there's activity and there are good deals available such as MEL
-RAR-PPT return for 20K in Y or 40K in C.