e58 police oil cooler

Some of the reasons i am considering using it is that the setup has a thermostat valve and the return line oils the timing chain. After this summer of driving in 100*+ temps might come in handy for long hard runs up a grade since the tire diameter is 26" and the rear gearing will be 3.00- 3.23. The possible leak issue is one of concerns may need new oil lines.
Has any one used this setup?

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