Other than the headstock the rest looks alright to me, not much more than usual wear & tear for a 30 odd year old instrument. Personally I would just apply some wax to help cover any thin or bare patches and not stress about lack of a perfect 'As New' finish. Besides, all the minor nicks and bumps add character and refinishing can sometimes ruin the tone of an aged instrument. Need to decide what is most important, tone or appearance. For me it is always tone, playability then appearance.