unfortunately, we cant really determien this, as with any other degree, the uai cutoff is determiend by th euni and the demand... the more demand= the higher uai.
i cannot predict what the demand is, so i cannot help, my only advice is to put in a backup that shows to have a lower uai than yours so that you amy still get in to if oyu want, or consdier say tafe, which after some discussion at my interview today with a fellowcandidate, is practical, chepaer, and more supportive.
also, the UWS D-day, go to that to find out more, but ive been to it in 04 and they bascially said the smae thing to me, advised me to have abackup prefernce and that they cant predict...i nean my first degree used to be 60, then when i went in 66.5 and now its like 63...[teh B Tech i mean, not B Biz]
also uws has been keeping its uai's lower than other unis since it wants to better serve teh western sydney region of course among other reasons, so that might help you out...
also consider alternative entry, like studying PT in 1 or 2 units if you , god forbid, were not offered a place..i forgot what its called, ill ht a link soon when i find ii.
hope it hleps.
edit:
ah yes, its called UniTrack...
http://www.uws.edu.au/about/adminorg/academic/oar/info/admissions/unitrack
jus tin case,
