I have a OEM fan if you get a rad on its own somewhere. Free to a good home, just taking up space, looks like new. Be aware, there were two different fan fittings on OEM half rads.
Buying a used oem rad is a gamble unless its "really" low miles as they seem to perish/leak around where the plastic sides meet the fins etc, thats reason why i changed mine recently and heard of quite a few doing this on local cars hence them contacting me for pricing on aftermarket items.