How many threads are you going to start with the exact same premise?
Cogs isn't going to bring back anything but a 3rd if we're lucky.
Silf is not going to bring back the kind of forward you're looking for, we should be able to get a 1st from a playoff bound team if we do end up moving him.
Larsson could be moved, but he has exactly been amazing in his time in the NHL so I doubt he would get anything of value, better off keeping him around especially when we are so short on good D prospects.
Lundestrom should not shopped, he's our more recent 1st round pick and has done nothing but shown his value to the team, absolutely no reason to move him.
We have no good RHD players after Manson and Montour, so there's no reason to move Montour especially when you're asking for a RHD..
Fowler is the only player that could be moved, but I rather not keep Larsson in the top 4 until he's ready, and he's clearly not ready for it; so again there's no reason to move Fowler right now.
And there is not one team in the league that would take Kesler and he would not waive his NMC to go anywhere.