power to manual steering

ok well i wanna get rid of my power steering. how do i find a manual steering gearbox that will fit? i cant find any for a camaro or firebird. so i was wondering if anyone knows if they all fit or if one from a s10 will fit or what? anyone know. because my buddy with a s10 just put a manual box in and its just as smooth and i want to shoot my power steering in the face. :banghead:

also will one from a first gen camaro fit?? or how about one from a chevy vega, el camino, truck, or spectrum fit? or a 68 chevelle?