3rd Gen F-body radiator $80 w/ warranty from O'Reilly/AutoZone/etc , junkyard Intrepid fans $25-$50, and mix in some RMI-25 $10 with water.
Ran same combo, and was always at 165-175, with 160 Tstat in SoCal heat.
Instead of spending $450 on a radiator, then adding fans, find the most cost...