70 C10 Custom Interior Color

[amloya]

I am trying to keep my 1970 C10 Custom interior original. Problem is I am not sure if what I have is original (stock). I know steering wheel is not original. Not sure if steering column, dash pad, and rubber mat should match door panels, seat (has been reupholstered by previous owner) and sun visors. Door panels, sun visors and seat are all offwhite. Steering column, dash mat and rubber floor mat are all a shade of brown (not sure exact color). Any ideas?