Bonneval completed a hat-trick of group wins when successful in the Oaks at Trentham and is a $4.20 favourite for Saturday's feature.
She is attempting to become just the second filly to win the New Zealand Oaks and Australian Oaks since the New Zealand classics were restructured in 1973. Domino won both races in 1990.
Baker and Forsman are also seeking group one honours in New Zealand this weekend, with Mime and Charmont contesting the Fiber Fresh NZ Thoroughbred Breeders' Stakes, the last group one race of the season in New Zealand, at Te Rapa. Jason Waddell will ride Mime with Matt Cameron on Charmont.
The stable will have up to seven runners at Te Rapa, including the unbeaten Let Me Roar, who will make her open class debut in the 1400m sprint.
Bonneval will be ridden at Randwick by leading Sydney jockey Hugh Bowman, who partnered the filly in a gallop on Tuesday. "He [Bowman] said she gave him a good feel," Baker reported.
Bowman, who won a Victoria Derby for Baker on Lion Tamer, has won 10 group one races this season and should add at least one more to his tally on Saturday, when he rides Winx in the A$4m Queen Elizabeth Stakes. He will be seeking a fourth Australian Oaks win, and his second in succession, after winning on Sofia Rosa, another Cambridge filly, a year ago. Bowman's first win came on Daffodil, another New Zealand filly, in 2009.
Bonneval has had only six runs as a three-year-old, spread over four months, but has yet to race on a track rated as worse than dead.
"She hasn't run on a heavy track but she's a good filly and we are very happy with her," Baker said.
The Randwick track was rated as a heavy 9 yesterday but little rain was forecast for the remainder of the week.
The Oaks market is dominated by New Zealand-bred fillies, with Harlow Gold (by Tavistock) a $5 second favourite and Nurse Kitchen (Savabeel) at $6.
New Zealand Oaks runner-up Devise was at $8 and shared the fourth line with Victoria Oaks winner Lasqueti Spirit. South Island filly La Bella Diosa was at $15.
Saracino was at $14 in the early markets for the Arrowfield but has won three group two races this term, including the Danehill Stakes (1200m) in Melbourne in the spring. "He's jumping out of his skin and will be a hope," Baker said.
Former Irish galloper Chance To Dance will make his debut for Matamata trainers Stephen Autridge and Jamie Richards when he contests the A$2m Sydney Cup (3200m).
Chance To Dance, who ran fourth in the Adelaide Cup at his last start, was a A$260,000 auction buy in Sydney last week for New Zealand syndicator John Galvin.
A gelding by Teofilo, who is also the sire of Humidor, Kermadec and Palentino, Chance To Dance was a group-placed in Ireland before being imported to Australia by Lloyd Williams.
He has had two wins and six placings from 14 starts in Australia and been placed in each of his five middle distance starts this year.