I can fit around $200-$250 AUD ($137.78) (I don't mind going a but overboard with money). (use this link http://www.msy.com.au/qldonline/ (this sites in AUD))
I like MMORPG games. I want to play games like GTA 5, Fallout 4, Witchers 3 and mostly Blade and Soul.
As long as you don't expect to be running these games on ultra settings the 960 4GB is probably the best option of the ones you listed.
I didn't see a powersupply listed in the build list you posted though. If it's just the internal one in the case (not sure if it has it or not) I'd be hard pressed to consider using it. It would be worthwhile in my mind to invest in a different case and a solid PSU if that was the situation