A few out of the box ideas (some more than others)
Given Anasta is playing rubbish at the moment, and I think Sirro looks more and more an edge backrower. Moses physically is unlikely to be ready.
What about playing Lawrence at 6 and Sirro on his edge, both are half way between each position and could offer enough hard running and ball playing between them to make them a pretty dangerous combination.
It would also take a bit of pressure of Sirro defending as an edge back rower if the bloke outside him is not really a half and is almost a back rower him self. Also limit the mobility issues lawrence is currently having (which may improve once his foot is fixed)
Whack Simona and Koro outside them, pretty potent left side.
The issue with Lawrence at 6 is if Sirro is not outside him he probably does not have the passing game on his own to fill the role.
The other idea i'm thinking might be to give Woods the 13 jumper. The role is pretty similar to prop these days, his mobility is certainly up to it. Given we will have Galloway and Blair along with a host of young guys (Taupau, Ava, Buchanan etc) we could run a 4 prop rotation with Woods playing 80 in the middle as a lock, running the ball a bit later in the count after a couple other big boppers have a go could strenthen the rotation and allow us to have woods hold the middle together all game.
I think Halatau will allow us to play a 4 forward rotation with Halatau covering hooker and backs,