Thank you for the suggestion. Alas, RAM is not so cheap here. For example, my current DDR 3 16 GB RAM cost me about 90 euros (100$). Alas, this is about the price in my country and ordering from abroad only makes stuff cheaper by about 10-20 euros but... I also don't have the guarantee of things actually arriving as... well, let's just say that packages seem to disappear into a void sometimes when entering my country, which is why many companies don't even want deliver here from abroad. The safest thing that never gets stolen seems to be books, but I doubt that if I leave a comment for the company like "and hey guys, buy the cheapest book, cut a hole and put my RAM in there" they will actually do that
I checked prices, and DDR4 RAM would be about same price for 16 GB.
As for the Motherboard, I'd only save about 20 euros. Yeah, it would be nice, but for the moment I'd rather not spend the extra 70 euros. And would rather not risk ordering from abroad as I don't trust corruption at the border. The price of living in a country that thinks it's 1st world country when it's not.