Linde's side will head up to Burleigh this weekend to take on Queensland's under 18s premiers Tweed Heads, for a chance to call themselves national champions.

"Obviously it's been important for the boys to celebrate and our premiership but we now have another job to do - it's paramount we refocus on the job at hand," Linde said.

"The chance to be national champion doesn't come around too often, so we intend to make the most of this opportunity that has presented itself."

Linde's side, who's preparation started on Tuesday with their video session, are confident going into Sunday's match at Dolphin Oval from 11am.

"After watching a little bit of how Seagulls play, they appear quite similar in style to Manly-Warringah," Linde said.

"They have a number of big forwards, that like to play aggressive in the middle.

"We know it's going to be a tough game but we wouldn't have it any other way."

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As Linde, who's squad is headlined by Warilla-Lake South's Blake Dowel and Sam Hooper, Milton-Ulladulla's Oscar Fitzpatrick, Berry-Shoalhaven Heads' Oliver Parrish and Albion Park-Oak Flats' Joshua Coric, said before last Saturday's SG Ball final, bringing silverware back to the Illawarra would be massive for rugby league in the region.

"Obviously we aim to win the competition each and every year but it doesn't all work out that way," he said.

"So I know all the boys are going to give their all on Sunday and not leave anything in the tank.

"It's been a big year for the club, after also winning the Tarsha Gale title, so this would be an amazing way to cap off a year to remember.

"We know it's our chance to create our own slice of history, as it will go even further to putting the Steelers name back on the map."