All of this is fantastic and there is clearly effort, but here are two trades I think would not be realistic. The Dallas and the Rangers ones. The Dallas one is good but I do not think that Dallas would sacrifice their future for pretty much a rental. The Rangers I am pretty sure they are rebuilding and not interested.

I think all of these are overpay.

I think you have three trades here that are 'plausible' (need some tweeks here and there) and three trades that are extremely unlikely.

The trades I can't see working are both the New York team trades and the Tampa one ( I think Tampa's package is one of the most intriguing and best ones that has been laid out but at the end of the day they have Kucherov, Vasilevskiy and others that need big contract extensions these next couple year so no way the can keep/resign Karlsson to the money he wants unless he is just being a rental for 1 year)

I don't mind your other three trades though, maybe take out Honka in the Dallas scenario because I think they are overpaying a bit in the original offer.

Completely under the radar, Toews for Karlsson and Duchene. Hawks take EK as a rental, trade him by the TDL to a contender, then re-sign Duchene for a more reasonable hit then what they gave their beloved Captain Serious, who seems to be an aspiring politician and might have a very long future in Ottawa. (Boy, that was quite the run-on sentence!). They have several good RHD prospects down the line.