Best way to add lots of text into part?

I have a part which has quite lots of text (which needs to be marked with laser), which would be the best way to add them to keep part as lightweight as possible? I know I could just use sketch in drawing, but if I want my text also shown in part when sketches are hidden? If I just do extruded cut, the filesize goes from ~500kb to ~3000kb. Is there any other way?

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