Nathan your paying wayyyy too much for your stuff.
Protein is a whole collection of Amino Acids including BCAA and EAA. So dont believe the marketing BS unless 1 brand has actually dumped in EXTRA BCAA powder into theirs, otherwise theyd all roughly contain the same amount given the same type of protein.
You should definately take BCAA (maybe with some EAA) whilst doing your cardio runs etc especially as your in a "starvation" type diet.
Go to purebulk.com and get bulk stuff of whatever you need. Make your own "pump" drinks etc for a lot cheaper. Their prices especially with usd almost same as aud is cheap as and add in my coupon code VIP and you get another 10% off(assuming code still works).
You could also try iherb and other places too.
Gaucheharbor:
Overall I agree with your last post except that whilst cutting you shouldnt cut your carb too much and though you shouldnt try to cut your protein you would need to re-evaluate your protein sources ie the type of foods and their calories/contents and upping your powder content to still stay calorie deficit.