Try Rockler, I believe I have seen what you seek in their catalog.
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I was thinking something like this.
There are other company's including web dealers that should handle this and other similar items. You are not in the trade so Hart & cooley may not deal with you directly.
If you can remove the center panels from the existing doors then replace them with perforated sheet metal available form your local metal supplier. Any reputable outfit will even cut them to size for you. Then either have them sprayed in the desired color or even better powder coat them before installation.
Above just one option, search your local area.
Best of luck