It's all about balancing the pack out IMO which is the toughest job Steve McNamara has.
I really don't think we need Hill and Mossop in the side. Graham and Sam Burgess will be more than comfortable doing the graft and getting through the tackles needed and making consistent metres. I'm not saying they are bad players, but they won't make any breaks or dominate the collision often enough. If they play they'll likely match the Aussies and make similar metres to what Aus do and similar tackle success rates, but Cronk and Thurston will win the game for Australia.
I'd personally go:
Shaun Lunt/Danny Houghton
Sean O Loughlin
The pack starting would likely keep the game tight in the opening quarter. When we get to the 25 minute mark we should bring 3 of the subs on to try and make an impact. Burrow makes good metres running from dummy half. He will cause them problems which they aren't used to. George Burgess as people have said is proving unstoppable at the minute hence his inclusion whilst Crabtree has played well against the Aussies previously and has gotten better since. Regarding Hock if McNamara can't handle him I'd put Crabtree in at 10, Burgess into 13, O Loughlin into 12 remove Kirmond from the squad and insert Tom Burgess into the side.
Kirmond deserves a place in the squad based on his form over the last 18 months. If he was at a top four club /NRL club he'd of been selected IMO.
At the end of the day I think we need a pack which is going to punch holes in the Aussie defence. Their isn't much point in having a pack which will match the Aussies but not make any impact. We need to play the game differently to what Australia do. Australias pack does what it needs to do, it doesn't win them the game. The people wearing 6 7 9 and 1 do that for Australia. Our 6 7 9 and 1 aren't capable of winning the game which is a reality we have to face, so rather than selecting forward who will keep us in the game we need those who are going to win us it.