I'm running a GM type II PS pump on my FE using brackets from Unisteer. The brackets are simple, strong and keep the pump close to the engine which was very important in my BDR. My setup looks almost just like this:
The application for the pump and reservoir are a multitude of mid 90s Chevy products like Cavaliers etc. That diagonal cut that you see in the right side of the reservoir functions perfectly to clear my steering shaft. Really, it looks like it was made for it. I bought my pump from a local parts store then used Unisteer's brackets and pulley. In retrospect I should've just gotten the whole thing from them, the cost would have been a wash.
Big Block Ford-390, 427, 428/Clip-on Reservoir Pump Kit - Unisteer Performance
Then I had a local hydraulic hose place make the hoses to connect the GM pump, hung on the Ford FE to the BMW PS rack.
Simple, right?