Get a Ryzen 5 1600. It's cheap on amazon and its the best value AM4 CPU imo at the moment.
If I were you, I would sell both of the 760s because of less SLI driver support. And with that money ~$200, you could find yourself a deal on a GTX 1060 3GB or a deal on a Radeon RX 570 4GB. It will take more time but in the long run, it would be worth it.
EDIT: Can you tell me how much VRAM each of those cards have? If they have 2GB of VRAM, you would sell both of them for around $150. And if they have 4GB of VRAM, you would sell both for around $200.
EDIT: Or you could save more money and wait for the GTX 1160 to come which imo is the best option unless you want to play right now.