I can second Qv on JMinato choice. I would go Kurenai with his given skills even if she isn't skill broken. I'm sure it won't take too long to farm her. Also you can change ninjas formation regarding your tactics, but positioning should remain the same.
Also yes, only Shisui would gain buff from Secret Jutsu Passive, I wouldn't recommend that having Minato in line, since Shisui play more as support role.
I think Qv will answer the rest, since he's JMinato user.