Will Water cooling fit?

I doubt anyone has squeezed a W'c into a small case like that, but I wouldn't say its impossible
you could mount it underneath that mesh on the top, although I would mount the rad inside and the fan may have to go outside on top, pulling the air out.
depends on clearance once Mobo's in ofc, you may be alright as is
Moto
 

MegaMan1

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Never seen this case, but looking at add, top fan is 140mm exhaust. If front fans are intake, mount radiator on rear grill provided and fan external on back of case. That is above PSU and out of way of MB. Should work. Might be able to use push pull fans on radiator.