I think Allen Robinson and D.J. Moore are a nice pair of receivers to buy low in dynasty, but who would be fair value to send out in hopes of acquiring them?
Really hard to say. Values for players fluctuate between leagues.
PPR or non-PPR? TE premium? Superflex? How many teams?
What are the current records of the teams with Robinson and Moore? What are those teams strengths and weaknesses.
In this particular case, Half point PPR, Superflex, 10 team, both are owned by the same player. He is on the cusp of making the playoffs in my division. WR does seem to be a weakness for him so perhaps I am being unrealistic.
Can you provide a win now player, maybe older vet WR, to trade for either player? These guys would not be classified as win-now to me. They would bye week/matchup plays for 2019.