water cooling kits

Hey guys, I'm looking to move from the AIO life to custom cooling and I've started to do my research. It might be a tad ambitious but I've decided that I want to go with Hard tubing as it looks much better and I'm happy to challenge myself a bit. I couldn't find too many cooling kits...

when playing witcher 3 im getting 68 celcius but today i played dead space 3 and it reached up to 73 degrees without vsync ambient temp is 31 are those temps worrying? 7850 1gb