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. :-(