I dunno, as an Avs fan I'd jump all over this.
Our two biggest needs by far right now are a legit #1D(Which Sakic needs to realize and maybe already has realized, will only come from drafting one) and a high end goal scoring Winger.
Pasta would instantly fill one of those massive needs.
We also get another likely Mid 1st round pick and possibly even higher. I would say just remove Bigras and Pullock though. Pullock is highly redundant to us as we're strong on the Right side of our depth chart and in the NHL right now, but much weaker on the Left side.
A Pastrnak - Mackinnon - Rantanen top line would be unbelievably exciting to watch next year.
And we'd still have some solid depth options with Jost, Compher, Andrighetto, Greer, all developing and a wild card in Yakupov.
As an Avs fan I'd do it even if we lose slightly in value. Our top line becomes two 21 year olds, and a 20 year old all established quality players already and all still with a lot of room to grow.