It's Me is the $3 TAB favourite for the $1.3 million Kosciuszko (1200m) for country-trained horses on October 17 at Randwick after three wins from three starts to begin her career following a year out with a tendon injury.

The four-year-old rocketed into favouritism after the most recent victory in a 1000m class 3 Highway Handicap at Randwick where she rattled off scintillating sectionals to win by three lengths in 56.54 seconds.

The times ranked her up with the elite sprinters and opened the door to speculation of a jump into calculations for the $15 million Everest (1200m) held on the same program as the Kosciuszko.

Five slots remain unfilled in the 12-horse field after Bivouac was confirmed as Godolphin's choice on Tuesday and Rothfire's withdrawal on Sunday.

It is understood It's Me has been mentioned in discussions by slot-holders but Cavanough said he had not received any calls.

"I think it's all just hot air myself," Cavanough said.

"The right people have been talking about it but I don't think anyone has got big enough balls to go grab her. To go grab a Highway runner and run her in an Everest.

"Facts and figures say she's capable, but I don't think anyone's got big enough balls to take her.

"If I had run her in the Premiere Stakes this Saturday and she'd won, it would be different. But the way she worked this morning, you would run her in anything. But I'm just happy to sit on the fence."

Cavanough is focused on Kosciuszko preparations for It's Me and Fender. Twelve of the 14 ticket-holders have selected their runner for the race.

Fender and It's Me will not race or trial again before the Kosciuszko.

"She was a month between runs last time, so she will just do the same," Cavanough said of It's Me.

"We just train the horse and turn up like we do. Some people get overawed by the whole event and think they've got to go up a level and do this or that.

"It's big race, but it's still just a race. Just train your horse."

Jason Collett will stay aboard It's Me, while Fender, a $17 chance, will have Kerrin McEvoy in the saddle after Hugh Bowman was initially booked to ride.

"Bowman has put the blinker on and said he's going to Melbourne, so Kerrin has jumped on," Cavanough said.

"He's a soft horse, he's not a difficult horse to ride and he'll be right there."

Newcastle apprentice Louise Day is set to ride the Matt Dale-trained Man Of Peace in the Kosciuszko, while top Hunter jockey Andrew Gibbons is aboard the Cody Morgan-trained Ligulate.

Lower Belford trainer Todd Howlett has $13 shot Two Big Fari in the race, where Grant Buckley has the ride.

AAP reports: Godolphin has locked in Newmarket Handicap winner Bivouac to represent its slot in the $15 million Everest but they remain optimistic Trekking will also gain a start.

Vin Cox, Australian managing director for Godolphin, said Bivouac made strong appeal as a dual group 1 winner.

"Bivouac is a proven group 1 sprinter with a magnificent profile that we are keen to build on," Cox said.

"He's a very exciting racehorse who we expect will be an outstanding addition to our stallion roster next year.

"Glen Boss rode him in his Newmarket victory earlier this year in what was Bivouac's highest-rating win and we're delighted to have him back on in the Everest."

Boss will be chasing his second successive win in the rich race after claiming it for the first time 12 months ago aboard Yes Yes Yes.

Cox said more than one rival slot holder was interested in securing Trekking and while a deal was yet to be finalised, he expected last year's Everest third placegetter to secure one of the five remaining vacancies in the race.

Bivouac was considered Godolpin's top seed for the world's richest race on turf but he was only confirmed for its slot on Monday.

Trainer James Cummings is also confident Trekking will line up and says it has been a team effort to prepare two strong contenders.

"To have one horse chosen to run in a race like this is a big achievement, to have two is something that only comes through a lot of great work by a lot of people," Cummings said.

Trekking is a two-time group 1 winner of last year's Stradbroke Handicap and the Goodwood at Morphettville in May.

He showed he had returned in top order with an eye-catching second to Pippie in the Moir Stakes at Moonee Valley on Friday.

Nature Strip remains the $3.50 favourite for The Everest with Bivouac on the fourth line of betting at $11 while Trekking is being kept safe as a $17 chance.