I'd change a few parts and agreed, the AIO isn't needed but I did put in the CM EVO Black RGB as it cools a bit better then the stock, is much quieter and adds a bit more RGB to the build. Also put in the 660P SSD which is much better then that Kingston SSD and with the money saved from the CPU/AIO I was able to more then double the SSD storage. Changed the PSU to a better quality unit.
actually i disagree if you want to overclock at least get the amd wraith if u want cheap if u want liquid because of looks go with an nzxt model or corsair model if u want ultimate peformance go with one of the higher end dark rock or noctua air coolers or previously mentioned water coolers. also drop the 660p it has a very bad sustained read and write speed to the point where it can be slower than a hdd. go with a 256gb intel 760p and a seagate 2tb hd both are 50 dollars. also you can get a good semi modular evga 750 watt 80 plus gold psu for 70 bucks. https://pcpartpicker.com/list/3Kn3r6
look this over it is a killer build for the price and the amd wraith max cooler lets u oc. if u dont want to oc then use 2600x and its stock cooler.
go for the 1 tb hd and a better mobo look at the asrock board i have in my pc partpicker list also holy @!$# how did i manage to spend 1300 and only have a vega 56 and a ryzen 7