It's 67 cm deep, so it fits, but you have nothing to attach it to. It has three holes towards the back to which you can attach an extendable rack mount, but you need to buy the mount separately.

Yes, you can use a 360mm radiator, but you can't mount the radiator to the plate with the 3 fans. You will need something like this: (or a more stable variant) Watercool MO-RA3 Standfuss POM The inner width is around 42,5cm.