what are they worth?

[68350]

there's a blazer at the local junk yard that has a 3 belt set in the front and rear. It has a middle seat in the front instead of a console, I heard this was optional, is that true? The middle seat is still there. They are black with a little fading. does anybody know what this set would be worth(front and rear, could also pick up kiddie seat if it was an option). also, does anybody know the option code for the middle seat belt in the front(like a pickup would be optioned)? Thanks