the best of the breed is the koyo. it uses real brazed tubing and holds up to track abuse
that said i would get another plastic tank from rock auto. the full size integra radiator from the factory is actually quite large for the displacement of the engine.
the stock fans won't fit any of the aluminum radiators except the koyo and that radiator is so thick you can't use stock fans and a header. then again it's so thick you don't even need fans. i kid you not i had one of those on the type r and in 100deg weather. in traffic....no fans, it did not overheat.
you can either get a spectra via rock auto or amazon or the koyo OE plastic radiator is part number W0133-1608401
the big aluminum one is on ebay for $300
something like this is cheap and gets you back on the road