Hi sorry for my late reply, temps are pretty good on the GPU and really silent.
On the CPU i am between 40-50C on idle-low workload, but i havent give any clean maintenance to the fans and my system in the last 6 months, should be in the high 30 in idle normally.
i am not using any rear fans, i feel is not needed, all the case flow is working as exhaust and all fans as intake.