headliner bows

I have a 69 chevelle and I think I'm missing 2 headliner bows. when we got the car the headliner was held up with safety pins attached to the bows. shouldv'e taken pics. anyway, the question I have is are the two in the center close together? we have the the outer bows and there is clips for the center ones but I'm missing them. are they the same size as the outer ones? the pics I see in catalogs shows what looks likea smaller one for the center.
Since we did'nt start with a complete set I'm lost on what I need.
Any help is appreciated
thanks
Dave