Personally I would trade Tavares if I was in your shoes... And the team in my sig was there about 4 years ago. But you would need to get vastly more value than that, and at least 1-2 fairly safe bets like a Hodgson or Evander Kane along with blue choppers like Kuznetsov or Huberdeau type players... And 1st rounders are always nice.
But I would agree to TRY to ship off older lesser assets first, as their expiry date is sooner, and Tavares value could still potentially go up.
12 Team PTs Only Keeper
F- Tavares, Seguin, Hall, Pacioretty, RNH, Duchene, Eberle, Brassard, Schwartz, E Kane, Strome, Zetterberg
D - Carlson, Vatanen, Schultz, Myers, McDonagh, MDZ
G - Bobrovsky, Halak
Bench - Toffoli, Bozak, Hanzal, Mo. Rielly, Bogosian, Sekera, Boychuk, R. Murray, Dubnyk
Top Prospects - Monahan, Horvat, Virtanen, Goldobin, Sanheim, Theodore, Pulock