Avoid cutting the hoses if possible for the mentioned indexing of the fittings. See if it looks feasible to disconnect at the oil filter housing, leave the connections at the cooler untouched (except for good soakings with PB) and remove the hoses and the cooler together. Take the cooler with hoses attached to a hydraulic hose maker.

Good luck!!!

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"Rudeness is a weak man's imitation of strength" - Eric Hoffer