I dropped $170 cash at a local store, tax-free. Had to have it ASAP because I dremeled my old Sonata to death trying to cram in that radiator. (Now that was like a mastiff trying to f*ck a shih tzu -- it might work, but the shih tzu just ain't right afterward.) You can get it for less online, but just slightly thanks to the cost of shipping a 40lb. package.
The radiator actually did fine just sitting there, but I've since removed the grille and made a makeshift shroud from weatherstripping. The airflow is great -- that intake is something like 16" long and 6" wide. I had originally planned to mount the radiator it in the 5-1/4 bays, but the DD heatercore was just too wide.
-HC-