Radiator replacement

[Veraciousreasoning]

Hey All,

 

So I am in the process of replacing the radiator on my 80 720. I looked through the service manual and my haynes manual and can't seem to figure out what I can replace it with. I am not against buying a brand new radiator but want to check the junk yard before I buy a new one. Has anyone else changed their radiator and can explain to me what will fit. I am thinking as long as the inlet/outlet are in the same spot and its similar size it should work but want to make sure I am doing this right. 

[banzai510(hainz)]

I forgot if this is a L20 motor or not

 

any of these look like it would fit

https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2334524.m570.l1313&_nkw=1980+datsun+720+champion+radiator&_sacat=6000&LH_TitleDesc=0&_odkw=1980+datsun+720+radiator&_osacat=6000