I faced same dilemma 3 years ago and same pricing
I called NPD and went with a new USA made radiator from US radiator for $379
perfect fit, well made and good to go
and when I scrapped the old 1980's Modine I got $35 for it
1970 Mach 1 San Jose built Dec 23 1969. Marti 1 of 7. Purchased in 1987. Original family owner of the power train
351C 2v FMX.
1993 GT 13,000 miles, Built 2-12-93 Bought 8/3/93 Auto, 3:27 Axle, cloth, sunroof, AC. Unmolested all original car. Purchased new 8-3-93. still has the factory windshield fluid.