You'd need to give up all your 3.5" drive mounting spots as well as your 5.25" drive bay since you'll need to remove anything obstructing your front radiator mounting endeavor. That being said, judging from this pic
You can achieve a maximum of 360mm of radiator space at the front but you'll need to be mindful of your radiator's thickness and the orientation of your rad's ports since they can probably will conflict your top mounted rad's orientation, placement and thus the overall temps in your system.
Taken off your manual + the watercooling sticky(in my sig space) you're probably overdoing it with that many internally mounted radiators. I'd say you're more than comfortable to undervolt your fans on that 480mm but you'll get extra headroom with adding a 240 at the front which is also the highest rad suggested for support on your case as per Phantek's designers.