Nice. Here's my detailed post, #237 in this thread: http://www.ford-trucks.com/forums/901856-7-5l-ford-460-oil-cooler-heat-exchanger-failure-16.html
The adapter is the Ford Racing M-6880-A50 90* adapter. Summit has it. I searched e-bay for the lowest price.
Oh, you'll have to get a stock oil...