Geheimplan gegen Deutschland. Hinter den Kulissen des geheimen Treffens der Rechten in Potsdam
Thanks for your question. Sure it is okay to ask here, this community needs more active members.
As for your question: I also haven’t got a clue about worsted weight yarn as I am from Europe myself. So what I do is look for a similar gauge and buy whatever I like. Works out fine most of the time.
Yarn is expensive in large amounts and wool even more so. So 180€ seems normal-ish for this amount of wool. I am sure you could do cheaper than that but not too much. I would consider making the cardigan from cotton yarn, which is still gonna be expensive but probably less than 180€
Hope I could help!
Geheimplan gegen Deutschland. Hinter den Kulissen des geheimen Treffens der Rechten in Potsdam