Cameron (31) was in Dunedin yesterday to promote tonight's kickboxing event at the Edgar Centre.
Cameron, who was on his first trip to the South, is recovering from a hand injury but had an MRI scan on the injured right hand on Thursday with the aim of having surgery in the next few weeks, to remove two titanium rods.
He has had both acupuncture and physiotherapy on the injured hand and was confident it would be right.
"I've been working hard on it and it is going to be bigger and stronger than it was," he said.
In the meantime he has been running and swimming to keep up the fitness, as he continues to focus on the big fight against Tua in Hamilton on October 3.
He admits the fight will be not be won entirely by what the two boxers do on the night.
"The fight won't necessarily be won in the ring. It is about the preparation and the work that you put in before the fight.
"That's is the thing in boxing or any sport. It's about the mental preparation just as much as the physical preparation - about using your top two inches to get the advantage."
"He's going to be pretty hard to knock down. He's never been down as a pro... but I'll have to stop him in the inside and on the outside. It'll just be about punishing him on the outside and the inside. He's more of an inside fighter. Winning this fight is about being smart."
Cameron predicted the fight would not go past eight rounds.
The former East Coast schoolboy said he would have an intense eight-week build-up to the fight and he had nothing personal against Tua, but it was strictly business.
"But he has had his time and now it is my time."
Cameron said Tua had acted arrogantly in publicity between the two for the fight.
"He hasn't shown me any respect. He said I disrespected him by saying I called him out for this fight, but that happens all over the world.
"It's like he is too good and is the king, and I should have not have shown this disrespect by calling him out."
Cameron said everyone in New Zealand wanted the bout and every person he saw talked about the bout, for which he hoped to be at his present weight of 104.5kg, but he never got tired of the hype.
Win and Cameron would be in the top five heavyweight fighters in the world and would head for the United States to try to line up a title fight, though getting such a fight was not always straightforward.
He had not considered his future should he lose on October 3.
• The kickboxing event, featuring several Dunedin fighters, starts at the Edgar Centre tonight, about 7pm.
