Ya, that's not enough for a 2nd overall pick who is 19 year old

how?

Lundqvist's contract may be big but he is still a decent goalie and there is only one year left on his contract so he doesn't have much negative value. Kaako is one of the best young players in the NHL. He maybe had an awful season but he is still an elite player with tons of potential. MTL's pick is prolly 9th or 16th overall so a player like Holtz, Quinn or Mercer, Jarvis. Drouin isn't the player we expected him to be so he doesn't have a lot of value.

Lundqvist's contract may be big but he is still a decent goalie and there is only one year left on his contract so he doesn't have much negative value. Kaako is one of the best young players in the NHL. He maybe had an awful season but he is still an elite player with tons of potential. MTL's pick is prolly 9th or 16th overall so a player like Holtz, Quinn or Mercer, Jarvis. Drouin isn't the player we expected him to be so he doesn't have a lot of value

I can't tell if this is serious. Domi, a guy I like, but is currently buried in your lineup and doesn't fit a need for the Flyers, is worth a defensemen that you want to slot into your top pair, a good prospect, and our first round pick? How does this benefit the team you are trading with? What is our motivation for accepting that deal?

...they could also just buy him out and save 3mil in cap space next year instead of giving up their top young player

Rangers easily decline, Take far more then that just for Kakko.