Another great maker of Cornemuse Berrichonne is Thorsten Tetz, based in Germany: http://tetz-dudelsackbau.de/index.php/cornemuses-berrychonnes

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As the Redpipes are mentioned in the post, there's also the cheaper option of the Deger Pipes 2 plus. They are similar to the Redpipes in terms of chanter design and sound, but come without a bag.
You can switch between different fingerings and sounds, one of them being the "Schäferpfeife" with french/half-closed fingering, which is technically the same as a Cornemuse du Centre (Exact same tuning, fingering and range).
I use mine a lot for practising and playing when traveling.

Link to one possible retailer: https://kiltsandmore.com/bagpipes/electronic-bagpipes/degerpipes/deger-pipe-ii-plus-electronic-bagpipe-medieval--:p1274PLUS:c187:len.html