Like a debutante going to the ball, Kerri Kulic went dress shopping on Monday in preparation for her and Muchacho's Sydney debuts.

The Canberra trainer has her five-year-old gelding entered in the Rosehill Gardens Handicap (1200 metres) at the New Year's Day meeting on Tuesday.

It had the usually unflappable Kulic fighting her nerves before her training debut in the city, but she said Muchacho had earned his shot at the next level.

The weights he was given in Canberra had become too great, she said, and the son of Nuclear Freeze would relish carrying just 52.5 kilograms, courtesy of apprentice jockey Lester Grace's claim.

The wide barrier (seven) would also suit and give him ''plenty of galloping room''.

Muchacho returns from a spell and has won six of his 11 starts, with two places.

''He's been pretty well weighted out of here; he's a benchmark 72. There's not a great deal around for him but in saying that I just think he probably deserves a chance in town, having won six races and quite a few places, and he's still only won $50,000,'' Kulic said.

''When you've got a good horse like him it's probably worth taking the big step to Sydney.''

It will be extra special for Kulic to make her debut with a horse she bred. ''It'll be lovely having bred him, just to see him take the next step forward,'' she said.

Muchacho is a $17 longshot behind $3 favourite City of Light, trained by Sydney's first lady of racing, Gai Waterhouse.

Kulic will see some familiar faces at Rosehill in her fellow Canberra trainers Nick Olive (Zaratone), and mother and son combo Barbara Joseph and Paul Jones (Candy Tuft).