Unless Chychrun literally comes out and says "I want to spend the next decade in Buffalo and only play RD", then he's not the right fit here, as much as I love the player.
Dumba is a better target in a trade (only if he would sign long term for reasonable $) and would cost less to acquire.
For me, even if he’d be alright with that it now limits us to having 5 left shot defenseman for the long term. (Power, Sammy, Bryson/3LD, Dahlin on the right, Chychrun on the right.
It doesn’t make sense to have our 3rd pairing RHD as the only one right handed. Makes it too easy for teams to game plan. Dahlin on the offhand is fine but already not ideal.
I’m all onboard with trading assets that will probably be stuck in a log jam anyways to improve RD, but it needs to make sense.