I think if you start with Tasi and Amor, then you have to be looking at the second row to provide that punch.
Vea gives us this in spades and LMS can do it too.
We'll see as the season goes on, but I think the pack is more than capable
Tasi Roby Amor
Vea LMS
Wilkin
With Walmsley, Savelio, Greenwood and (another forward or Fages) on the bench.
That is a large pack.
Also as we seem to be insistant on running with a large bench and no one to cover Roby, then I would be looking to rest Roby 5 mins either half of half time, push Wilkin up to dummy half.
He can tackle, he can pass a ball. I think he played hooker earlier in his career and it would be similar to what Leeds did on occasions with Sinfield.
As for the backs assuming they are all fit
Lomax Makinson Turner Pervical Swift (Burns/Fages) Walsh