Use of the power steering bracket sounds too easy. I expect the power steering bracket bolts to the front motor mount holes, which I am currently using for motor mounts. I fabricated a bracket which bolts to the head for my power steering pump, so the only room left is on the right. I don't care for the space-age brackets which mount everything up high.

Regarding flange bolts, there are no Orchard Supply Hardware stores around here that I'm aware of. All the auto parts stores in town (we have one of every variety, plus several regional chains) and hardware stores don't carry them, and say it is a special order (read expensive ) to get them.