Top pairing dman vs PPG winger? I think the Dman is likely harder to find and less-available. I don't think they're out of line at all for asking 3 first-equivalent assets for Chychrun. I just don't think it's necessarily worth the gamble unless you're renovating the D to add one more as
@kilowatt said above, and his injury history is absolutely a gamble. I think if you can get them to bite on some conditional picks and/or gamble prospects it's more palatable.
That being said, if the Kings end up rolling something like Doughty-Chychrun, Anderson-Spence, Gavrikov-Clarke (Durzi, Walker) it's almost worth it to move a lot of assets not named Byfield or Clarke. I'd like to think not even Todd could f*** that up.
There aren't spots for everyone that's for sure, I'm high on Turcotte but I think he'd have to be made avaialble as would Fagemo, Thomas, Madden, Chromiak, any and all of those guys are relatively 'B' prospects in a Chychrun trade.