The paper recommends the council appoint an external project manager, supported by an external working party, internal project team and consultants and advisers "as necessitated".
The scale of the project called for an external manager and its significance also meant it was appropriate to establish an external working party to "provide specialist and independent expertise, advice and peer-review expertise to this project," the staff report says.
Hastings Mayor Lawrence Yule said the council wanted to ensure it had a level of "independent thought" and appropriate information on the options before public consultation began.
"We think it's a best-practice approach given the amount of money we're talking about. Rather than going out to the public with some uncertainty, let's nail down some cost options and then go out to the public."
Mr Yule said he did not know what the cost of the independent appointments would be but did not expect it to be expensive.
"A lot of people help us on the basis that they want to help us and it's not a long-term piece of work," he said.
"It's really just trying to use the best brains we can find in the short-term to make sure we're doing things in the best way we can."