Yes, that horseshow bracket will do the trick, but the only way to get your hands on this adapter is to buy the Cardone Super Pump. That particular aluminum factory pump bracket will definitely need to be mowed in various places to clear the stouter Saginaw P, though it is well worth the effort in the long run.
Also, I didn't mean to get down on Fords as it looks like I did - they're just not as directly interchangeable.