This would be my side (I haven't seen the squad or am aware of who is u/21).
FF: Brian Montgomery, Angus Bruggerman, Heath Pym
HF: Ben Russell, Steven Pollock, Matt Birchmore
C: Josh Watson, Ned Seccafien, Travis McCallum
HB: Jordan Clements, Robert Montgomery, Tallan Leighton
FB: Jake Birchmore, Adrian Mark, Dylan Wise
R: Wilbur Farrelly, Nigel Osborn, Joel Montgomerie
Interchange: Aaron Dart, Chris Stephens, Harry Gameau, Jason McPharlin, Josh Seal
I would imagine you would be pretty on the money, just minus pollock and Adrian mark because they opted out.
The better Birchmore opted out too.
Nah, I'm pretty certain Jake has put his hand up ;)