The young Roos cruised past Orange City on Saturday to set up a grand final showdown with the undefeated Bathurst Bulldogs side.

Missing a number of players mattered little to Dubbo and while Matthews was delighted with the win over the Lions, he was well aware the Bulldogs were an entirely different challenge.

"We had a couple of guys leave to go overseas after last week, and a few of the guys who have sat on the bench moved up into the starting spots as a result, but they got the job done which is great," he said.

"It is a good performance to go into a grand final on the back of, but it'll have to be better next week for us to even go close to Bathurst.

"They've been the benchmark all year, they've got a couple of good coaches over there who have got their guys very well drilled. They're like robots."

The Roos completely outclassed a disappointing City outfit at Pride Park, and while the Lions own poor discipline hurt their chances coach Fletcher Niven conceded the visitors were just too good.

"Luck didn't have anything to do with it, the better side won on the day. [Dubbo] certainly came to play and our boys were ill-disciplined," Orange City coach Fletcher Niven said.

"It was dumb options, and that came from the guys not really doing the hard yards on the paddock. But they got to the last three and that's credit to them.

"Last year we had a high turnover of players and I thought we might struggle. Winning five or six on the trot at the start of the season I thought was the worst thing that could've happened to us.

"The guys took their foot off the accelerator, stopped turning up and we never got back on a roll from there."

It didn't take Dubbo long to kick things off, with fullback Luke Ryan, who has featured heavily in first grade in 2015, diving over in the opening exchanges.

Despite Orange City's best efforts, it was all Roos from there.

When the Lions got the ball, and that was rarely, they couldn't hold on to it, and Dubbo ran in another two tries through winger Zac London to take a 20-nil lead into half-time.

Dubbo didn't take their foot off the gas in the second half, and when Orange City fullback Weio Got was yellow carded for inciting a stoush, the Lions were all but out of the game.

Ryan Rooke crossed for Dubbo soon after, and penalty goals to Ryan and Brad Collins sealed a comfortable victory for the Kangaroos.

Niven was left impressed by what he saw from Dubbo but he echoed Matthews thoughts on Bathurst and stated they would begin the match as favourites.

"I think you have to tip the form team, Bathurst," he said.

"I think Dubbo will have to lift again to beat Bathurst, but any team's beatable."

o DUBBO KANGAROOS 30 (Zac London 2, Luke Ryan, Ryan Rooke tries; Ryan 2 conv, pen goal, Brad Collins pen goal) def ORANGE CITY 0