This is what i have come up with, Link
I would like to play games in 4k at at least 40fps and I do not plan on anything productivity related. Any advice towards different parts, hopefully cheaper, that would be great. Thanks
I highly suggest 1440p 144hz G-sync over 4k, it is completely unviable unless you go SLI 1080s, and 1440p 144hz is the sweet spot atm imo.
I'll post a build in a bit.
Here's what you can get if you splurge and spend a bit more.
You can power 4k at great settings and 60fps, but it is $200 more than your budget allows for. PCPartPicker part list / Price breakdown by merchant