Just sell your CPU,MOBO and RAM and upgrade to next gen,get 6th gen intel CPU - Intel i7-6600K
For MOBO get Gigabyte Z170
For RAM upgrade to DDR4 - Crucial Ballistix Sport 16GB Kit
With all of that get a cheap air aftermarket cooler like Hyper evo 212 or if you can afford for water cooling get corsair h100.