First of all, the type of RAM that you use won't matter to your Hackintosh. Secondly, the performance difference between 1600 MHz RAM and 2000 MHz RAM is very small. Just buy whichever one is cheaper.
P.S. Both of those RAM bundles are expensive as hell. I don't know about prices in Australia, but in the U.S. and Canada, you can get 16 GB of RAM for only $100 (and as little as $80 if you get it during a sale).