i might get the 7700k but i plan to use air cooling i'm not sure if it will stay at a low temp as i'm on my computer all day for schoolwork games etc.
here's the fan i will use
Cooler Master Hyper 212X - CPU Cooler with dual 120mm PWM Fan
i'm going to get the 7700k if it will stay at low temp
i'm upgrading from i5-6400
my budget is around $850 for motherboard, cpu, fan, case, case fans if needed, and toolkit
found a motherboard that works with i7-6700k and fits the fan.
if you want suggest some motherboards, fans, and cases