[Scripting] Convert Point text to paragraph text?

I am trying to convert point text to paragraph text and vice versa through scripting. There is already a discusion here from 2015 https://community.adobe.com/t5/after-effects-discussions/convert-point-text-to-paragraph-text/m-p/7399420#M139019 which states that these attributes are read only and the suggestion is to create a new layer and copy all properties from original layer here.

However in discusion here https://community.adobe.com/t5/after-effects-discussions/copy-keyframe-value-from-quot-levels-quot-effect-quot-histogram-quot-property-with-extendscript/m-p/12745506#M193467 for different topic, it is said that custom value properties cannot be copied. So this approach isnt bulletproof.

Is there a better approach i can take i am not thinking of? Or is my best solution to go through all the attributes and copy them hoping there wont be any custom value properties and if so, let the user know? Is there anything that would not be copied by this approach other than the custom value properties?

Thank you,

Martin