A son of Wootton Bassett, who died last year, Wodeton is seen as a replacement for his sire if he can land a Group 1.
Waller said Wodeton was likely to be retired at the end of the current racing season to stand at stud.
"He's a son of Wootton Bassett and we've lost him unfortunately and it's important he steps up and that's the challenge," Waller said.
"Heading overseas is part of that challenge, especially if he's going to be retired at the end of his three-year-old year.
"We all love winning races in Australia, but if you can do that and then head over to Ascot, it makes the big difference."
Like Wodeton, Angel Capital is searching for his maiden Group 1 victory.
In contrast to Wodeton, Angel Capital was under a stranglehold at the tail of the field.
"We just wanted him to get a good look at the track, have a nice easy time and keep him well contained," Waller said.
"His first-up run in Sydney was very good and he's come through it well and hopefully the straight 1200 metres will really suit him.