disco 1 engine oil cooler

[noexitroad]

Hi team,
I have nearly finished my Disco 1 budget bush bash build but I have a problem.
I have relocated the radiator to the back of vehicle. I will reroute the oil cooler for trans and mount in the back. No probs there.
I now need a cooler for engine oil.
I bought a cheap cooler with 10AN fittings thinking it would just screw up to existing hoses but off course that would be just expecting too much.
Any ideas what will just fit straight in without pi$$ing about with new hoses or a trip to the Hydraulink dude??