I have a GH copy, disc isn't mint, but it's pretty good, I'd rate it 8/10. Instructions are pretty damn near mint. Case is a little beat up ( I guess I could swap it with a better one if it's a big deal)
I'd trade it and some cash for Dead Aim
or I'd trade it for either Dead Aim, Castlevania Lament of Innocence, or Klonoa