WAY too much.

what do you think is a realistic offer 2 first and Knies?

If it's Knies & 2x 1sts, Dubas is out.

1st, Knies, 2nd should be close to enough? (maybe needs a tweak of mid pick or depth prospect) OR it's multiple 1sts / early picks & lower level prospects instead of Knies.

He's an RFA, but it's still a rental. Looks to me like it's us, NJ or CAR. NJ might be willing to pay more as they'd be most likely to extend him.

how to make a two line offense better = while making the other 2 lines worse.

Joey anderson in lineup = sucks
Kampf on 3rd line just is not an offensive threat
Holmberg = isn;t good enough (yet) for NHL and his constant demotions prove that

not to mention too many offensive guys on defense and not enough crease clearers.

I really dont think a really expensive trade for a top 6 forward is what leafs need.

the demotions are not because of skill they are so he plays on the off days in the ahl they want him to play as much as he can.