If you were to sell a kit, the way to promote it would be to post a how-to on Instructables, and offer the kit if they don't want to fabricobble their own.
https://www.instructables.com/workshop/cars/projects/
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.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
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.Because much of what is in the published literature is nonsense,
and much of what isn’t nonsense is not in the scientific literature.
-- Sabine Hossenfelder
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