I would definitely consider 15 for McGroarty. He'd fills a need, has developed well, local team if he goes back for another year, and is closer to the NHL than anyone we'd draft this year. This is exactly the kind of deal I'd love for Yzerman to explore if we deal our 1st. Maybe something like 15+ Berggy for McGroarty and Pegs 2nd? This is assuming McGroarty is a NHL spot or bust and Stevie doesn't want two top 6 winger "rookies."
As for Kane, I don't really feel like he fits this team go forward. DBC absolutely looked worse when he was paired with Kane. Everything was telegraphed between the two. Plus DBC + slower Kane is a really hard on their center defensively. I feel like you'd need a prime Jordan Staal type player to make that current iteration work. Putting Larkin in the middle of the two forces him to work down low too much and he has his own injury history troubles. Kane needs to be sheltered at this point in his career and the Wings don't have the players to do that. He cannot engage physically along the boards and he's always been meh defensively. Committing to him past 1 season at a time is a major risk. Maybe worth it to a competing team looking for that piece to put them over the top, but that isn't where the Wings are.