Now that his starting line-up has been decided, Plumtree said his team were ready to embrace history.
"We've beaten the Australian Conference winners in Australia, the South African winners in South Africa and now we take on the New Zealand winners in New Zealand," the coach said. "It's been great for our team spirit to knock off the 'impossible' two weeks in a row and it has been because our senior players have stepped up and accepted that challenge, and done really well.
"It has built confidence and getting to the final builds added excitement because of what we've been through. It's given us that little bit of confidence going into the big game."
The Sharks lost narrowly to the Chiefs in April in Durban but Plumtree says that game is irrelevant.
"That was a long time ago, they caught us coming back from our New Zealand tour and we had played a number of games on the trot before that big contest and we were hanging on for a bit of a rest," he reflected.
Where does Plumtree think the game will be won and lost?
"Defensively it's going to be really huge. You'll come under pressure at stages and how we react to that pressure is important. From an attack perspective, we have to make sure we take opportunities wherever they may present themselves."