The Ulsterman, who joins Kawasaki after six years with Ten Kate Honda, posted the second best lap just a few hundredths off pace setter Alex Lowes on the second day of WSBK testing in Phillip Island.
Rea says while things are going well he is aware that things can change suddenly, though he is very happy with his preparations. .
"I am happy to go into race weekend like this, although we still have some things to work on. It is just a bit of an unknown really so I am just working with my guys on the bike and trying to focus on going as fast as we can for all 20-laps.
"I was able to do a long run today and was able to keep most of the laps in the 1'31s. I do not know how competitive that is going to be but for now it is a start and we have that information to work with. We have done all the testing we can do, so I am happy that race weekend is coming," said Rea.
"All the anticipation and excitement is there but we do not have to wait long now. I am looking forward to the lights going out on race day. Definitely, this is the best position we have ever been in at the start of a season," he added.