I don't know a lot about 80's fashion but for baggy pants, look at JRPG characters namely Sora from Kingdom Hearts. That might give you some inspiration especially in his newer gear.
Also, I've got a few that're out on Tapas: Huntsman and the Wolf (which was just updated a few hours ago), Oathbound, and Legend of the Four Elemental Heroes (which I'm working on updating right now). There's a few others but they might be released this week if I've got some time.