Implicit casting scriptable object to font in unity editor

Hi I am wanting to create a custom font type specifically a monospaced bitmap font and beable to pass it to the unity editor as a font.

https://gist.github.com/Shadowblitz16/6ca4deebe8ca216e2411b1c03f6a3436

however there are two main problems...

• unity seals it's font type making inheriting font impossible

• unity editor doesn't allow implicit casts to be passed as font type

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I was wondering if there is some sort of converter I can implement for my custom font type that allows it to be pass as a font resource.