Looking for some assistance with radiator challenges

65 Dodge Dart GT with 225. The car has 99k miles and the original radiator has several issues, it finally let go last night. Local radiator shop is $175 for overhaul, new radiator is a little over $200. Does it behoove me to keep the original, the car will move into the resto-mod direction, but today everything is original...

Will a new radiator greatly increase cooling?

Thank you in advance for your insight!

HAMMER