Call summit racing. I didn't see mine advertised, but they had a direct fit radiator for my Stang. It's NICE and was like around $200 or $250 I think. It's also much better than the 3 core I had in there earlier!
I have the GoDan, which is sold at Autozone, Pepboys and other places as the "maximum cooling" option. It is just like the factory unit but more than twice as thick. I went right in no problem when I had A/C and the stock clutch-fan and shrowd. The only thing I had to do is remove the rubber from the mounts, no big deal, it fits tight so no rattles or anything. My car runs the same temp all year around and in all driving conditions.
i have a brand new auto zone 3 row and a brand new electric fan on it i will sell for 200 bucks the rad is a 150 buck rad and the fan was 95 the only thing has never been ran just filled up and the fan put on the rad, the stuff is brand new nothing wrong with it