If they move Marner, they should experiment with attaching Zaitsev to him. If four unprotected 1sts is the floor for Marner's trade value, it means if Marner is traded it will be because someone has offered substantially more or at least a better package for the Leafs than four 1sts.
Taking Zaitsev would be a creative asset a team could give up to beef up a Marner trade package. Fans of teams on this board don't seem to like the idea of giving up picks or prospects for cap space, but taking back one or two less assets for Marner to get 4.5M in cap space for the next 5 seasons would be immensely valuable to Toronto considering they are an attractive free agent destination who could actually put that cap space to good use, and it is their window to win now.
There'll be no market for him outside of a bad contract swap. The Leafs can probably leverage the fact that Zaitsev has most of his salary paid on July 1st and try to move him to a budget team in a deal for another bad contract (or a series of bad contracts), but I think it's incredibly unlikely that they find a trade partner.
If we add Kapanen I think we should be able to convince CBJ to give us Jones
Not a chance.
#1 RD on an amazing contract for a good young top 6 winger and a huge negative value asset? That doesn't make much sense. Kapanen would have to be worth considerably more than Jones for that to make sense, he's not.