Seat Question??????
 

I am in need of a rear seat for my 66 Valiant. What other year and model seat will work?
Also I have a rear seat for a 66 Valiant convertable which is a little narrower along with the matching convertable split bench front seat. Both are in very good condition and are the mint green with the dark green insert. So my question is what are a set matching set of seats (front and back) in very good condition worth?