Good luck! It's gonna be hard :D. Also include the operating system please.
PCPartPicker part list / Price breakdown by merchant
could go for cheaper keyboard/mouse/case but there is 1k
This list uses lots of parametric parts so the parts will likely change and the price will go up or down.
If you are interested in overclocking your cpu, I would recommend this modified list. Basically it switches out the R9 280x for an R9 280 and upgrades the CPU and cooler. PCPartPicker modified list