Certainly things mt.wellington has said about Wellington imply things aren't as well set up for an NRL team as they should be - player numbers down, clubs not talking to the WRL etc...Petty sure most of us would support both clubs against Aussie teams. A South Island team would be a better rivalry with the Warriors for tribalism, but southern league's in sad state these days, big risk to try to turn that around unless the Canterbury Rugby Union took a stake in the franchise as was vaguely floated years ago.
Cantabrians are no more likely to support a Wellington based NRL team than the Auckland Warriors, most of them hate the Blues and Hurricanes equally. Waste of time trying to sell the Orcas to the southerners, theyd be better setting it up in Chch and doing a deal with the CRU for pathways and shared resources, it could take off down there if the one eyed inbreds had a successful league team to compliment their religious union fanaticism, you can't convert them from Wellington. Just my opinion as an old Chch boy and diehard Worrier.
Best way would be for all the other regional RLs (if they have A Cash and B Inclination) get together to put money in, I can't see any RU putting money into their opposition's pocket.