Laine for Rakell and a throw-in like Lucius or a 3rd is about what I'd offer, and if they wanted more, I'd shrug and hang up the phone. FWIW, I don't want Laine or think he'd sort his stuff out on this team, with this coach, but it's whatever. Getting out of four years of Rakell for two years of Laine seems fine.
Dunno why he'd want his "fresh start" to come with a team in this position, or why Columbus would risk the egg on their face by trading him to a team in-division though. So it's probably not even worth talking about.