ASUS Prime X399-A CPU Cooler Compatibility

[ichimo]

I'm having problems trying to figure out what CPU cooling system I need for a new computer I'm putting together. I recently bought a AMD RYZEN Threadripper 1900X and the ASUS PRIME X399-A. The cooling system I recently bought and now need to return said that it supported sTR4... Although when it got here, there was no way to connect it to the sockets. Is there a list or something of compatible liquid cooling systems I can choose from or get a recommendation for? I have a budget of around 130$ to get the cooling system.

 

[Lucky_SLS]

https://pcpartpicker.com/product/Qzqbt6/enermax-liqtech-tr4-360-1022-cfm-liquid-cpu-cooler-elc-lttr360-tbp

Or the 280 version. Bigger coldplate for better heat dissipation.

 

[ichimo]

https://pcpartpicker.com/product/Qzqbt6/enermax-liqtech-tr4-360-1022-cfm-liquid-cpu-cooler-elc-lttr360-tbp

Or the 280 version. Bigger coldplate for better heat dissipation.

Is there another one, I can only fit one fan slot unless there's different spots to mount than the back.
edit: My friend just sent me this actually, would this work? https://www.newegg.com/Product/Product.aspx?Item=N82E16835146061&ignorebbr=1
edit: I took a closer look at the new case i had and found I could pop off the top covering to access a grate at the top for the 2 fan setup to work.