Which radiator should I buy?

Nuclear101

Honorable
So I'm building my loop and need to buy a 360mm radiator and a 280mm radiator, and I have decided to most likely buy them from EK waterblocks. However, I am not sure which 360mm radiator to buy:

EK-CoolStream PE 360 (38mm Thick but 38 FPI)
EK-CoolStream RAD XT (47mm Thick but 11 FPI)
EK-CoolStream RAD XTX (64mm Thick but 11 FPI)

I am putting it in the top of my 750D, so I don't know the max radiator thickness for a push-pull fan configuration.

If you recommend any other radiator, please let me know. My maximum budget is $130 US.

Thanks,

Nuclear101