Help be build the best bang for the buck pc! Scavenging my old parts.

I have a quest for you guys. I want to build the best pc I can from my leftovers. In this post, I will be going in-depth about the parts I currently have, and I will try to paint an image of what I will like to end up with. This is only for fun, meaning I won’t be needing this pc for anything. If I should use it for something then it should be a streaming pc. !
Without further ado, here are my parts.

To start this of we have the Asrock fm2a88x+ killer motherboard. You can read a full review on this link
http://www.reviewstudio.net/1698-asrock-fatal1ty-fm2a88x-killer-review-for-the-low-budget-gamers
It’s a solid motherboard which has served me well in the past, with few to zero hiccups.

As for the hearth of the pc, we have the AMD A10-7800 series CPU. It’s an okay Cpu, low power consumption, haves a decent clockspeed of 3.5 ghz. It does compete with the I3 4150, but are not as good in processing power. I will be overclocking this Cpu and will most likely need better cooling.

The memory of our build is 8 gb of Hyperx ddr3 1600mhz. I know that 8 gb of ram, is the absolute minimum for a streaming pc. We don’t want to spend more money on upgrading the ram. Since this is a cheap build.

The only graphics card I had laying around was my old daily driver. The GTX 780 3gb oc edition from Asus. This card can still run many games from today on decent to high quality. This is a good budget card and it will do just fine in our build.

Your quest now is to build the cheapest and the best pc you can from the parts I listed above. I will then buy the parts from the comment with most upvotes. Let me know if you would like to see a time-lapse of the build, or if you have a suggestion then you are then welcome to comment it down below.
Just an FYI, there are no rewards(Sry about that, still new on Steemit)
Have fun and build on ! :D