Hey, sorry to put a downer on this but you won't find any example 'portfolio's' of competancies on the net, basically the NZ gives no guidance on how to prove your learning, simply that you must show them If you are lucky you may find someone who has done thier own and is willing to show you some of thiers but don't count on it as it's a lot of work!

Your best bet is contacting a NZ agency/employer and asking if they have examples, I'm sure they do but getting it out of them might be tough!!

I guess your degree should cover most of the competancies but you'll obviously need to go through them one by one and prove every bit with referenced examples etc....

good luck