I would think a well planned DONE3 in itself would be able to get you QF Plat (subject to the QF 4 flight rule of course).
Originally Posted by
DownUnderFlyer
Buy a Qantas Club membership. Good for AA/BA/QF lounges when flying those airlines. Better than an AC membership.
Note less good for BA lounges at present - only BA Terraces, Exec Lounges and the T3 lounge -- ie. at present no T5 access... There is a lengthy thread on this in the Qantas forum.