I'm so glad it worked out for you in the end. You're braver than me.
I've been meaning to upgrade my PC as well, but haven't even tried to go GPU shopping yet. My current one, a 3gb GTX 1060 handles most of my needs just fine. But it really is the weak link in my current set up. So, I want a new one, but I can also wait a little for the market to relax.
Good luck on your WoW raids! Your mage looks awesome.