Thanks for the reply. Avaiability wont be a problem really. I've found most cards online here in Norway and those that I haven't found some of will be in by the time I'm ready to order some anyways. I have a 1060 3GB and while testing I've gotten only about 19MH/s after overclock wich is quite low for that card, It's hynix memory and I've probably been a bit unlucky with my unit or something. If I were to buy 1060's 3GB would be enough or will i need to get the 6GB ones?

Well I might be going for some 1070's if I can find them a bit cheaper. Yes I've mainly focused on eth so far but I'l be mining whatever is most profitable with the setup I end up with.