Australian Guineas runner-up Alpine Eagle is already back in South Australia with trainer Tony McEvoy to monitor the colt before locking in his next move.

McEvoy believes he has a potential star in Alpine Eagle who charged home to win the Group Two Autumn Classic a week before before backing up to beat all bar Wandjina in Saturday's Group One Australian Guineas at Flemington.

The South Australian Derby in May is still an option for Alpine Eagle but the trainer has ruled out a trip to Sydney for the Rosehill Guineas or any other races during the Sydney autumn.

"The South Australian Derby probably is still on the radar. I'm just not going to make any decisions for two weeks," McEvoy said.

"I want to see how the horse is and what that week has done to him, if anything, and then we can make some decisions.

"But at the moment they would be guesses. He's not going to Sydney."

With a music festival at Flemington racecourse on Sunday, McEvoy elected to have Alpine Eagle floated home after the race to his South Australian base from his on-course stable.

"He's arrived back home. He's out in his grass paddock at Angaston and all my reports are that he's very bright and well," McEvoy said on Sunday.

"I'll be seeing him later today."

McEvoy was proud of the lightly raced colt's Guineas performance and excited to see what he can produce in the future.

"He's potentially as good a horse as I've trained, because I still don't think he's there," McEvoy said.

"There's more to come."

The trainer was also buoyed by the post-race reports from 13-time Hong Kong premiership-winning jockey Douglas Whyte who made the trip to ride Alpine Eagle in the Guineas.

"When a guy like Douglas Whyte comes in and is so complimentary about the horse, that's pretty exciting," the trainer said.

He said `he just hasn't arrived yet and he's got more to come'."