I had a GTX 970 I didn't need anymore (due to having upgraded to GTX 1080 Ti). It seemed like it would not sell for a reasonable price, so I decided to build a PC around it and try to sell it that way.
This is what I came up with. It's already sold.
The customer came back to me later that he wants to use the PC for machine learning and maybe he should get a better GPU. So I took the GTX 970 back and used it in another build.