Please can any1 help me i need advice on the best way to go about emigrating to NZ?

me and my husband and 3 children are wanting to live in nz but there is so many diffrent ways and companies to choose from and all the paper work cost so much �2000 just for some1 to advice us on what to do (i am willing to pay tho just think it is alot to pull out) my husband is a plumber and i am a care istant i do have family there to but it is the cost if any one has any suggestions or have done it and recomend a company they used it would be very helpfull and thanks so much for reading it and repling to my question xx