Installing /e/ on a Samsung Galaxy A5 (2017) a5y17lte running Android 8.0

Oh and one more question : it says on the manual page that we should download and flash the stock ROM, but the link is not working… Should I skip this step or should I find a working download link and still do it? It says here that this step is not necessary Samsung - Galaxy A5 (2017) - a5y17lte - Documentation Suggestions but what would you recommend?
Thanks in advance