You wrote about the Jeseníky Mountains. That's at least 80 km as the crow flies from Radhoště in the Beskydy Mountains. That's why I was surprised that there should be any buildings by Jurkovič there.
I am a 'fan' of Jurkovič since I discovered his cemeteries in Polish Beskid Niski. He had designed a series of World War I burial sites, situated on summits or mountain passes. It had been part of the gigantic project by Austria-Hungary to bury the fallen during the autumn 1914 and winter/spring 1915 campaigns. The cemeteries are not only a decent burial places for Austro-Hungarian and Russian soldiers (btw, as you know, both armies had soldiers from many nationalities, I see a lot of CZ/SK, PL, HU names on the graves) but Jurkovič managed to create true masterpieces. See my post https://beskidy.truvvl.blog/piekne-cmentarze-zapomnianej-wojny-i-w-swiatowa-rotunda-beskid-niski-i-luzna-pustki-k-gorlic (in Polish - history context and some photos). Check also the "Rotunda cemetery" which in my opinion is the most beautiful.
In this context, when I learnt that Dušan Jurkovič had worked in Czechia, I simply had to include his works in my itinerary of the Moravskoslezske Beskidy trip. He had designed the Libušin and Mamenka hotels on the Pustevny sedlo. They are beutiful! See https://cs.wikipedia.org/wiki/Libu%C5%A1%C3%ADn_(Pustevny)