Fresh Air Door

What ma mopar gave us is a barn door on a bird house.
So I ask same question every time this topic comes up...
If there was a replacement panel that attaches with screws, and that panel had a vent in it similar to the dash vents in newer vehicles, you could regulate and direct the air flow, and there was also a washable filter behind it to hold dust, pine needles, etc., in the bird house... would you buy it?