So I'd want someone who can do the job as either a lock or smaller middle. I don't think either of those guys can, nor anyone I've seen in our squad (Mapapalangi is probably closest physically and skillset but need to expose him to the middle now).
Otukolo was one I mentioned. Someone recently mentioned Freddy Lussick. Haven't looked at contracts but Gordan Chan Kum Tong, Puru, Donaghue.
His footy has absolutely fallen off a cliff recently but Mason Teague was one I massively rated as a junior who would be suited.
Jake Elliott needs an off season in the gym but he could be moulded into the role. There's bound to be some QCup options but haven't watched any for a couple years.
Edit I don't want to pick a player for just a 20minute role. There is to many variables in a game to limit your options with a guy who will only provide value for your team for 20 minutes.