Any suggestions on this gaming build?

I'm going to use it for fortnite, BO4, Overwatch and Minecraft. I might buy an HDD later but I think the SSD will be fine. I'm not looking to spend over $600. Please let me know any suggestions, I feel as if this could run fortnite at 80fps epic settings.

You should definitely upgrade your SSD to 500gb, you won't regret that. Otherwise you can always double check you tube for frame rates.
Your system would not be able to get 80 fps in many AAA games in the steam store, but fortnite is known for having lower requirements so maybe you would be OK.

Seems kinda pricey for the Graphics card, when you can get a better brand at a lower price.

The special prices on these graphics cards might expire when you read this. I suggest using nowinstock.net to find Graphics cards on sale.