Unfortunately no self serve yards here anymore, and I’d need to form a sealing bead on the tip - can’t weld to save myself - so that would be TIG work to a third party.
If I didn’t have a retaining bead on the hard line, it would be a cause of worry - whether the risk was real or imaginary.
It’s only necessary to get such a fitting because I refuse to bypass the radiator tank cooling loop, this ideology is prone to causing arguments on AFF.