The most common advice here would be to mount the two 140mm front fans as intakes, the AIO rad system at top as exhausts, and the rear 140 mm fan as exhaust. The case comes with two fans and you say you intend three, so I presume you will buy a third 140 mm Fractal Design Dynamic GP-14 fan to match the other two. NOTE that those fans are of the older 3-pin design that requires Voltage Control Mode (aka DC Mode) set for the mobo SYS_FAN headers you use. It is not advisable to mix 3- and 4-pin fans in your system, especially not together on one header.
In case ventilation one wants near-balance of intake and exhaust fan capacities. In reality, of course, there is one firm rule: what goes in must come out. And you really can NOT know or calculate real air flow balance from capacity specifications, but they are good guides. My own preference is that there should be slightly more intake capacity so that the interior of the case is at very slightly higher air pressure that outside; this means air LEAKAGE at cracks will flow OUT of the case and prevent influx of dust. Of course, that also assumes that all intake fans will have dust filters in front of them (included in your case's design). Given those considerations, the "common advice" above will result in two front fans as intakes (capacity slightly reduced by dust filters) versus four exhaust fans - three on the rad (a significant flow reducer) and one unrestricted at the rear. Air flow overall will be good this way. But air flow balance is likely to be too much exhaust capacity. IF you want to address that, one way would be to connect both the front intake fans together to one header and configure a custom "fan curve" for that pair to run them faster than "normal" so that they keep up with the total exhaust capacity of the other four. Another option, though, would be to take advantage if the optional fan mounting location in the left side panel. Buy a fourth fan of that same 140mm type and mount it there with a dust filter. Connect it also to the same fan header with the front pair (use a simple Splitter) and let the header use the default "fan curve" for that group. This gives you a bit MORE total air flow (some of it directed into the space where the graphics card is) with three intakes and four exhausts, but the top rad fans are more restricted (in terms of air flow) than others. The likely result is a good balance with small positive air pressure inside the case.
If you need more details of how to use a Splitter, and the distinction between a Splitter and a Hub (you do not need a Hub), post back here.
I have assumed you will NOT use the fan speed control device mounted in your case. That is a simple manual switch on the front where you can plug in three case fans. With that YOU have to monitor your system temperatures and decide when and how to set fan speeds. It is much more convenient to have the fans' speeds controlled automatically for you by mobo SYS_FAN headers that are configured to use a temperature sensor on the motherboard (not the one inside the CPU chip) for guidance. Now, on SOME cases equipped with fans and a manual control button, the connectors on the fans' cables are non-standard and can't be plugged into mobo headers. I am assuming that will NOT be a problem for you with this case and fan set.