That's my take too, Cerra and Peatling should comfortably outscore Bont and a rookie over those first 6 rounds, but that's only answering half of my question and probably the most important bit.
Which combo makes more cash over the first 6 rounds?
Because of Cerra's injury risk he's a planned trade out after round 6, I know things can go awry and other stuff get's in the way, but that's my aim. He'll be upgraded to Daicos, Bont, Sheezel or Flanders, maybe to someone else who provides value, but he's definitely a short term play. If he can score at 110 (given his draw he might) then that should see him at around $580k, it won't be hard to find $50k-$80k to upgrade him to one of those mentioned earlier. The difficult thing will be trading him if he's pulling those good scores.
.Peatling is, as you say, a stepping stone and I'm under no illusions about him being a keeper, he'll ideally be traded before his bye to someone that's had theirs
Is it unrealistic to assume that initial 6 game average for Cerra, likewise, is an assumption of a 95 average unrealistic for Peatling, assuming his role eventuates? If the answer is no (it's not unrealistic), or thereabouts, then there's $250k-$300k to be made on those two.