Exercising an option on Suavito is set to pay off for connections going into the Group One Australian Oaks.

Suavito's owners leased the three-year-old but they didn't take long to buy her from the filly's New Zealand breeder.

Trainer Nigel Blackiston advised Suavito's owners to move quickly after her third at Caulfield in September.

"I said `go and buy her straight away, she's a good filly'," Blackiston said.

"They took my advice and got her for a good price and she has already repaid them."

Blackiston handled Suavito cautiously in the spring, avoiding a VRC Oaks campaign with the Australian Oaks in mind.

Suavito ran placings in three stakes races in Melbourne but Blackiston said the Thorn Park filly impressed him most last start in the Group One Vinery Stud Stakes (2000m) at Rosehill.

"She got back in the Vinery from a bad draw and ran home as well as anything in the race," Blackiston said.

Champion jockey Damien Oliver buoyed Blackiston's confidence when he stuck with Suavito.

Blackiston is sure his charge will see out the 2400m of the Oaks.

Suavito looks the best chance of Blackiston's three Randwick runners with Let's Make Adeal and Desert Jeuney to run in the Group One Sydney Cup.

The Flemington-based trainer won the Adelaide Cup with Let's Make Adeal's `uncle' Outback Joe with both stayers descending from the 1991 Caulfield and Melbourne Cup winner Let's Elope.

Blackiston said Let's Make Adeal would enjoy returning to handicap conditions after missing a place at weight-for-age in the Group One BMW at Rosehill.

Desert Jeuney will tackle the Sydney Cup at just his 13th start but Blackiston found it hard to split the pair.

"Let's Make Adeal's family grows an extra leg when they get over ground and Desert Jeuney could be anything in 12 months," Blackiston said.

Desert Jeuney is also bred to see out the 3200m of the Sydney Cup.

The four-year-old is by the same sire as the triple Melbourne Cup winner Makybe Diva while Desert Jeuney is out of a daughter of the 1994 Melbourne Cup winner Jeune.