That's a good wish list, but the guy that I would pay a mild premium for is Hintz. I don't think the Rangers will be in a position this year to trade for a big time player, but using the depth the team accumulated to upgrade an NHL spot is viable.
What would be most important is a LHD that can play 15-18 minutes at 5v5. With the Seattle draft coming up, that player isn't someone you want to pay the moon for since you would have to end up going 4 & 4 in the expansion draft. That said, I can see a forward slot being upgraded. Made some adjustments to your list to organize some NHL options and named some prospects. Needless to say, the Rangers have a lot of currency to make an upgrade.
You can sign a reliable young veteran as a 4th liner. Larsson in BUF is a good UFA to get. Rodrigues won't get picked up at his cap hit, and he's played for Quinn. Good resurrection project, guy has wheels, can play C, and kill penalties. Michael Amadio is a good get if some of LA's kids push him out of the line-up. He's a good modern grinder with NHL experience... one whose good 5v5.
Laf-Zib-Buch Trade
Bread-Strome/Trade-Kakko
Kreider-Chytil-VK/Gauthier/Lemeuix/Barron
Howden-Larsson-Richards/Boyd/Amadio
The Rangers need a LHD that gets you 15-18 mins a night 5v5. You can sign a guy like Beaulieu, Merril to two year deals, have it be Seattle friendly, or trade for a guy like Nutivaara.
You're getting a franchise player in Laf, so there isn't a need to make another splashy acquisition. They need to focus on the areas where the roster has some gaps. Good news is that there are plenty of chips to help move things along.