ow, yeah but i dont think with an AIO wich is much heavier its the smartest idea to mount it with only 2 screws, the bracket isnt the most durable thing ever, and also with the extra height added to a radiator, the little bumps where the tubing stick out and one on the opposite side, i dont think it'll fit. or it will interfere with the gpu and top panel, or with the sides. and also correct me if im wrong, but the hdd bracket doesnt have the same spacing as an 120 mm fan. and looking at yourbuild it is almost touching the edge, so there will be incufficient spacing, or you need to drill your own holes. dont recoomend that tho.
With my previous PC in the In Win 303 case, I used to have a 280mm with just 4 screws and it stayed in place for 4+ years without an issue. So I think a 140mm with 2 screws is plenty safe enough