Minsc is easy. A Tadpole hurt his memory, so would be easy for him to need to relearn his skills. With Barbarian class coming, he is perfect for it and with Boo being a space hamster the nautloid ship might have some really interesting interactions.
Minsc is still a ranger as of 5th edition. He's in a tie-in D&D comic book and they released a character sheet for him so I imagine his stats will look like that.
