Has anyone ever tried putting a 300D turbo radiator into a 240D, or is there much over heating with the regular system on hot summer days?

I'm going to be getting all my AC hoses rebuilt and installung a new compressor soon. I have an extra 300D turbo radiator and coolant tank. I'm just wondsering if extra cooling would be a good thing.

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1984 280SEL, 62,000 miles
Euro model in the USA
1983 300D (Totaled out 10/2004)
New Factory Mint Green paint
Palomino int
1982 240D (Steak dinner for two)