Scott Base has been ridden in recent starts by Rosie Myers, who won the Karaka Million 3YO Classic (1600m) on the gelding and guided him into fourth in Saturday's Group 2 Avondale Guineas (2100m).
"The horse went well and obviously he has to get the 2400m, which we think he will," Benner said.
"Hopefully, he can draw a softer gate in the Derby and can get a bit handier. There's probably five or six winning chances and it will come down to who gets the right draw and best run."
Benner said Scott Base has bounced through Saturday's run and coped well with the travel to Auckland and back to his Otaki stable.
"So far, so good and he's come home in good order. He's eating well and was out at the beach this morning, he's a happy horse."
Meanwhile, Benner is confident the Australian-owned Ocean Park filly Miss Valencia can show quick improvement on her debut third at Wanganui last week.
"She wasn't screwed right down and she's got a bright future," he said.
Miss Valencia is part-owned by successful Cranbourne (Victoria) trainer Mick Kent.
"If she's good enough she'll end up over there at some stage," Benner said.
- NZ Racing Desk
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