"But I have a lot of respect for Mosheen. She's a triple group one winner, an outstanding filly and deserves to be favourite."
Streama steps to 2000m for the first time in the Vinery, while Mosheen won the VRC Oaks last spring over 2500m.
"It [2000m] is a query, but I'm confident she will run really well," Bowman said.
"I must admit I was a bit disappointed at first the other day after the Coolmore, I really thought that was the race for her.
"But as it turns out the track was playing opposite to how I rode her that day and that's no fault of hers.
"I thought she sustained a gallop right to the line and the only ones to beat her were group one performers.
"I think she was far from disgraced and with all due respect to Mosheen, I'm looking forward to taking her on."
Bowman has ridden Streama in all 11 of her starts, which have netted five wins.
The daughter of Stratum won the Flight Stakes by 6 lengths in the spring and has three other group two wins to her credit.
Such has been the dominance of Mosheen and Streama that the next filly in yesterday's market was She Goes To Rio at $23.
Trainer Kerry Parker will saddle up $41 chance Aliyana Tilde in the Vinery but he isn't approaching the event as a race for third place.
The filly was a closing third behind Vinery rivals Appearance and She Goes To Rio in the listed Keith Nolan Classic (1600m) last start and Parker can't wait to see what she can do over today's trip.