Trade zaitsev and brown, then it will be ok until Marleau comes off the books

Too many good players... ah man we are sooo screwed.. this is the worst.....

You are correct, we will have to trade someone. Maybe even TWO guys believe it or not.

But they'll be Zaitsev/Brown and not Nylander/Kapanen.

Huge overpay on Kappy. Thats almost how much he'd get for 6 years (Dvorak contract)
Comparable contracts put him right in around 2-3@2.5-3
Add a year and I think that is about top end for Marner.
I think you get 8 out of that Matthews deal, but I could live with 7 on that aav.

Johnsson likely gets a bit more. (3-4@2.25-2.75)
Sandin will not play next year. Re-sign Oz (or other depth) to play the 3RD until liljegren gets called up mid season (think like 1@.950-1.000).
Sparks likely gets the mac contract (2@.850).

And that should just be enough to make it all fit.
And yeah expect a cap of 83. Could go a bit higher but yeah.

Remember that the marlies play in Toronto. Leafs can get away with a 21 or 22 man roster if they need to.