I wouldn't touch Turris with Chara's stick. Turris is 5 years older than Monahan, he is only $375k cheaper against the cap, and he's under contract for another year which puts him into his mid-30s. And his offensive production is nowhere near Monahan.
Over the past two season, Turris has played in 117 games and had 54 points. That is a 38 point per 82 games pace. All for the low, low price of $6M against the cap. Turris is Okposo at center.
Over the past two seasons, Monahan has played in 148 games and had 130 points. That is a 72 point per 82 games pace.
Turris gets you roughly 50% of the production of Monahan and not 90%. And while Monahan's production likely dips in Buffalo, I doubt Turris' improves in Buffalo and as he ages.
I am not all in on the Monahan idea. But, if the only choice up for debate is trading for Monahan or trading for Turris, I would trade for Monahan unless what the Sabres are giving up in the two deals is stupid. For instance, if it's Okposo for Turris vs Reinhart, Montour, and Mitts for Monahan, then I might consider trading for Turris.
The Max Domi idea is interesting.
If the Canadiens trade Max Domi, what should they seek in return?
There are some interesting trade targets in there for Domi. That author seems to think that if the Habs move on from Domi, it is likely to be a change of scenery deal for an NHLer. Gaudreau is a name that they threw out there.
So, it would seem that the Sabres parallel is Reinhart for Domi. And I wouldn't make that deal, personally.
Even 8OV for Domi is something that I would have to think a lot about.
The really fun conversation about the center position is whether to target an offensive guy like Monhan/Domi or more of a two way guy like Cirelli/Danault.