Foundations of the Kostuchna-Łaziska cableway, known as the LUFTBANA

Cable car, or "Luftbana"
Many of our residents still remember the cable car that transported coal from the "God's Gifts" mine in Kostuchno to the power plant in Łaziska Górne since 1939. The approximately 17-kilometer-long route led mainly through the forests of Gostyń. You can still find the remains of the foundations of structural poles in them to this day, but you have to work a bit. Interestingly, transporting coal by rail was 7 times cheaper than by rail!
At the beginning of World War II, in September 1939, the Germans tried to use the transport wagons to attack the positions of Polish defenders. However, this was detected and the queue was fired on by anti-tank guns.
wyry.pl/aktualnosci/ciekawostki-z-gminy-wyry-o-princoku-i-luftbanie-w-gostyni
gostynslaska.pl/wiadomosci/kolejka-linowa-kostuchna-laziska

Great curiosity, but... the map shows that this is not the place. From the sources you provided, the Luftbahn ran in a north-eastern direction and crossed this road and the Milky Way only at one point - about a few hundred meters further west than the marked place.
I was driving along this road yesterday and along the path (leading east-west) some concrete plinths regularly appeared, parallel to the path on. So it must be some other dropped line. Also marked on this old map that you posted here along with the photos :)google.com/maps/d/viewer?mid=1Pp0M5NGJSU2zTDgUQZPrsRxh8wI&ll=50.167737164013076%2C19.00240972738932&z=15