Edited Feb. 1, 2022 at 11:10 a.m.
I proposed something similar in a different thread, but had Samoskevich in instead of Schwindt under these conditions.
Knight, Samoskevich/Tippett and 1st is fair in my mind. Tippett seems to be a piece available now, so maybe the trade is for Tippett. I really like Samoskevich, though. By adding Kessel and retaining 50% a value of a 2nd+ is added in my mind. Then we take back Vatrano/Hörnqvist and maybe get the value to a 1st. Is it enough to make the trade Knight, Samoskevich, Tippett and 1st? I think so, but could see the hesitation from Florida. I wouldn't mind adding a pick from our side to even it out. One of our late 2nds or our 3rd. I wouldn't mind skipping the extra pick and replacing Tippett with Nause, but it doesn't look to be the case.
So in short; Chychrun, Kessel (@50%) and 2nd/3rd for Knight, Samoskevich, Tippett, Vatrano/Hörnqvist and 1st.