defrost duct

I have this set of defrost tubes I will not be using. I bit of rub through or cracking on one of them. $60 plus shipping.

I'm looking for a right side defrost duct for my '76 40. It's the one that clears the copper lines to the heater. Preferable with the knockout still in place since I don't have the secondary defrost vents. Also interested in a single copper line cover that goes over the rubber section. Thanks.