Burgonet helmet for id

[A Senefelder]

and that any modern day armourer with the skills to turn out a realistic looking repro burgonet would find it more profitable to turn out even an honestly described repro of an earlier closed visor-type helmet, what would be the motivation for making repro/fake burgonets?

Elfina, as a recently retired reproduction armourer of about 20 years experience the opposite is true. A burgonet is a pretty complex bit of shaping and few but the upper end of expirience will try or do them. It's the reason there are so few reproductions of 16th and 17th century helmets available to the re-enactment market, burgs, armets, close helmets ect. are among the most complicated so few do them. I'm not saying there isn't some who might give it a go at faking an " original " but the type along with most 16th and 17th century types are not particularly come in the reproduction market due to their complexity.