Do you have a parts recipe of what fits? Anything that works with a stock 5qt pan? I talked with Milodon, their recommendation of pump and pickup was accompanied by a large 7qt pan, which I suspect might be from a difference in how the pickup sits, but if I don't need a large pan to clear, I'd rather not run one. I'm guessing clearance to bottom of pan can be an issue depending on the pickup and the height of the BBC pump compared to SBC.
I've noticed a few manufacturers are making the 5 bolt BBC pumps specifically for the SBC (melling, milodon, etc) but I'm not sure what they are doing to a stock BBC pump, other than anecdotal comments that there is a different angle somewhere.
It's a low RPM truck engine that needs more oil at low RPM's, the BBC pump is something I'd like to try out...see if there is a difference, since I can compare to the present small block setup.
I'm not going to exceed 4500RPM's, nor a hardcore offroad rig that will see extreme angles.