Good deal. Then yes that card will be a massive upgrade for you. I think I've read a 1060 6gb is about 2x better than a 2gb 770. And the 1070 is a step above that level. So you're basically going up 3 or 4 tiers. I imagine that card should hold you a year or two, which will probably give you plenty of time to save up for your next card.
How much ram are you getting btw? I'm going to guess 16? As that's a good spot. The 3600 should be able to push that card pretty well. Especially with a little overclocking. Though you might need to get a slightly better cooler.