looking for cheapest build around some parts

I already have the ryzen 7 1700 and gtx 970 and would really like to find the cheapest build around these two items. I don't have any peripherals and I had a friend try to help with a build but it's way over my budget. with the ryzen 7 and gtx970 coming to around 400 I wanted my total (peripherals included) to come to 900-1000usd. Any help at all would be so much appreciated! I prefer to order online though I do have an accessible microcenter.