Once a Kings Fan Too
Joined: Jun. 2018
Posts: 40,120
Likes: 25,035
I think this trade is a lot closer than my Anaheim colleagues, but you're still a little short by something between Axel Andersson and Connor Clifton. You are right, Kase by himself is not worth a first, but there is some value to taking on Backes' contract (there is no need for you to retain anything, particularly inasmuch as Bob Murray has said the Ducks are okay with taking on a bad contract).
There are many variations on this trade that make a lot of sense for both teams, but your basic idea here is a great outline. We just have to decide on the last 5% or 10% of the deal.