Small Block Oil Pick Up Tube Question

Did you just sort through pumps until you found one you could drill and tap? I've got seven housings and every one is offset far enough that it could not make room for 1/2 pipe. I tried the best one a few weeks ago to make sure, and it was far too thin on one side. Do I just need to keep looking at parts houses? Seems like someone would make a pump to solve the problem. :-(

Look at the picture of the two pumps the one has the hole over to one side the other doesn't. My modified pump has just as much material in the side as it does.
The pump on top is the pump with the Milodon pickup adapted to it.

My final picture with the Milodon pickup cut, then tapped, then mounted. I did not cut it off pass the insert so I have to drill it out to 5/8in.