Bailey is set to play his first Test at the age of 31 in the most exacting of circumstances at the Gabba - in the opening match against England tourists bidding to win a fourth successive Ashes series.
He has forced his way into the team on the back of a prolific run of one-day international scores, and since his selection has canvassed opinion from three trusted colleagues about how to approach what he admits is the biggest week of his life.
Rob Quiney, Matthew Wade and Xavier Doherty have all given Bailey the same advice.
"It's been a bit of a weird week - it's felt a bit surreal," said the Tasmanian.
"But I guess it'll really sink in when we get into everything tomorrow. It's mostly excitement at this stage.
"I've had the chance to talk to Bobby Quiney and Wadey and Xavier Doherty over the last few days, and the overriding thing from them is just to make sure you enjoy it.
"Sometimes in these situations you have to remind yourself of that - because there's a lot going on."
While Bailey prepares for his belated debut, Mitchell Johnson is gearing up for a high-profile comeback.
A year older than Bailey, the left-arm fast bowler has not played Test cricket since March and was omitted from Australia's Ashes plans last summer.
But he has been in outstanding ODI form of late, and is a proven match-winner at his best.
Former Australia fast bowler Brett Lee is confident Johnson can have a major say in the Ashes, and does not expect a return to the big stage to compromise him.
Lee will be happy to watch him bowl the first over, and trusts him to set the tone.
It was at the same ground seven years ago that England seamer Steve Harmison lost his radar with the first delivery of the match, bowling it straight to second slip - preface to a 5-0 hammering for the tourists.
But Lee said: "I'd definitely give Mitch first over. Why not?
"It would send a strong message that he was mentally and physically right.
"He'll be fine. Just leave Mitchy alone and let him go out there and bowl.
"Tell him to run in and bowl fast, swing the ball, and hope he blasts those stumps out."
Lee does not expect Johnson to be put off either by England's 'Barmy Army' travelling support, who taunted him about his inconsistency in 2009 and again in 2010-11.
"Just enjoy it and have a laugh," he said.
"I think the Barmy Army is great for the game, and you've just got to try and laugh along with it.
"I don't think Mitch will let it get to him. He's a lot tougher mentally than you think."