Trouba wont fetch fair value in the trade market until he is signed and has been able to demonstrate what he can do with a good defensive partner.
Connor is an amazing prospect but unproven at the pro level. He could quite possibly end up being the best player in this trade proposal.
Even though I think that it is a significant overpayment value-wise and the Ducks would more than likely be the clear winners in the long term, I would still do the OP trade from the Jets side. Lindholm is proven (plus I really like his game) and a bird in the hand is worth two in the bush. I'm fairly certain that most other Jets fans wouldn't touch this though.