Edelbrock Crankcase Ventilation Hose Connection to PCV breather

Johnny Dart said

I would use that hole for a twist on oil cap, or twist on breather. To install the pcv valve you want a round hole for the grommet. What does the other valve cover look like ?
A full pic of each valve cover sure would help.

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The Anson valve covers are symmetric as are the heads. This is the issue I’ve been trying to work around. (Another great argument for stock valve covers) if I can get a oil cap that seals then I can use the rear punch out for the PCV.

I’m trying not to throw the bank at the project and use what I have....