Cold Case or Griffin radiator in a 1970 Duster?

1970 Plymouth Duster with a 360 and automatic transmission. I'm looking at the Cold Case MOP755A or the Griffin Exact Fit Radiators 5-70154. I have hard lines for the transmission cooling lines. Would be nice to have to tweak as little as possible. There is quite a difference in price of the two radiators. Any of you guys who run any of them in a Duster with automatic transmission? How do they fit? Read that some people could not close the hood with the Cold Case, and had to modify the lines for the transmission.
I'm running a Griffin single core in my 73 Scamp with a 408 pushing 470 HP and 500 ft. lbs. torque.
Made a long trip from North Dakota to Pennsylvania and hit Chicago both ways at rush hour traffic first of this month 1.5 hours in a traffic each time at 85* outside and temp gauge stayed in the normal.
10,000 miles on my car with a Griffin and no over heating ever.