The bottom end of black seat belts

My son calls our garage the black hole of Port Williams because much of what goes in there seems to disappear.

Well, we took out the seat belts in 2010 and we have no idea where the bottom parts went to.

Looking in Canada first because of fast shipping... does anyone have a set..just need the pieces from the floor to the female buckle, Black.

Thanks.

PS I am not sure if this is relevant but we have gone from bench to bucket. Worse comes to worse, can we pull the ends off the back seat belts ? It wouldn't hurt my feelings if he could only take one person in the car..