Mate, you said you don't have all the answers but get upset when i point out possible issues with your proposal?
As for the Brisbane/Gold Coast teams, you are suggesting Brisbane has two teams but the Gold Coast also needs to be factored for, so that means 1 team for Brisbane and 1 for the Gold Coast, you can't share a team between Brisbane and the Gold Coast, they are demographically separate cities, its like suggesting a team from Manly should also be representative of Newcastle. Its a throw away line to say "leave it to the locals", how can you allocate 2 teams if you haven't done any research or have no understanding of the rugby environment up in SEQ.
As for population, once again thats a throw away line or we would be given 5 teams to Melbourne as well. Population is a statistic but it has no relevance to how many actual rugby union supporters are in that state, if we look at rugby union participation numbers the QRU had almost equal the number as the NSWRU in 2012, heck the Reds have more members and larger crowds.. Statistics are an indicator but need to be examined further.
Cambletown is far from a "no brainer", there is a reason that professional teams don't base themselves purely in this region, socioeconomic reasons will dictate that their is insufficient corporate support to ensure the financial security of a professional sporting team. Rugby Union in Australia needs a financially stable competition to start with, basing a team in Cambletown which has less player numbers then that of Perth can remain a long term objective of the competition, however in the short term it makes absolutely no financial sense.
I agree that Sydney deserves to have more teams as it does have a larger economy and more rugby union players, however the Cambeltown team is a waste of money..I do like the other three teams you proposed for Sydney.. However I also think in the short term a Newcastle/Central Coast team should be overlooked, it doesn't even participate in the Shute Shield yet all of a sudden we want to promote it to the newly established third tier. Once again, Newcastle can sit in the longer term objective basket..
By having fewer teams the financial liabilty will be reduced, the already limited player pool in Australia will be consolidated which will in turn leader to higher quality of play. Keep the new competition simple and practical.