Greig and JBD ars far from 1st rd talent. And Colin white was a 1st rounder, that's not what he's worth anymore. The only valuable pieces you are sending are Pinto and a 1st in a terrible draft.
Think more like
1st 2021
Sanderson
Pinto
Another 1st rd pick talent wise
Respectfully disagree on the assessment of JBD, Greig, and the very top end of this draft. White wasn't meant as a first round talent/first round value.
Greig was a first round pick last draft that has performed very strongly this season and projects to make an impact in the WJC for Canada should the tournament happen. JBD had a very successful college career and was also a solid shut-down defenseman for a gold medal winning Canada and the WJC. They're both still first round talents. There are some very good players at the top of this draft. I think "weak draft" is fair, and also accentuated by the fact that is a mystery bag draft with many of the prospects not playing much. The Sens' pick won't be down in the muddy waters of the mid first round and beyond, it will be at the top end, where the quality players are.
I don't necessarily disagree with what you mentioned as the asking price, but I think it would be just that: the initial asking price. Something like 2021 1st, Sanderson, Pinto, and Norris would make sense as a starting ask for Buffalo. The starting point of the negotiations are always higher than where the final price ends up. At the end of the day, I could see Buffalo saying no to any trade. We'll never know whether Eichel wants out, or if he's completely content in Buffalo and wants to make things work there. This thread isn't about that though, nor was it the point of my initial comment. It was about the conditions under which moving our first makes sense - if Melnyk gives the green light to spend, and we use the pick to bring in a first line center or a top pair defense while shelling out the cash to sign the other top player in free agency. If any of those things aren't in play, we shouldn't move the pick.