What a Capitals & Kings Dubois-for-Kuemper Trade Looks Like

Jeff Marek recently reported in his “Rink Fries” report that he “got a note from someone from an NHL team (not LA or Washington) wondering if a Pierre Luc Dubois for Darcy Kuemper deal could make sense for both teams.” The offseason is only now getting started, but does a Kuemper for Dubois trade make sense, and how could a trade work?