I like RNH, but I'm not giving up a d-man right now.
The only player I'd be willing to put on the table as a centerpiece is Elias Lindholm at this point - and I'd cringe while doing it because I think Lindholm is about to break out in a big way. Makes sense for Edm as they'd shed a big contract and get a younger/cheaper/more durable player while retaining the bulk of RNH's production. Makes sense for Carolina as they get a much-needed legit high-end player that won't look out of place on a 1st line. Bit of a gamble for both sides, but the risk is basically equal.
Honestly though I don't think Carolina is a particularly good trading partner on any front right now. Faulk, Staal and Skinner are too important to the team's on-ice success. Any trade for Hanifin has major backfire potential (keep in mind this is the franchise that traded away 20-year-old Chris Pronger). And young proven supporting cast type players like Slavin and Rask are far too valuable to a small-market small-budget team.
Now, a year from now, if Hanifin and Slavin continues progressing, they make Faulk expendable and the potential return from trading him is far too tempting to pass on (in theory).