How much strength to the block does it add? Has anyone damaged a LS block with a sheet metal oil pan and not having the suppport of the aluminum? I think Canton does make pans that don't bulge out like that.That sump going out to the side like that almost certainly won’t work with a front driveshaft.
Also, what I have heard from multiple reputable sources is that the OEM pans are designed to be a structural member with the block, and that the aftermarket stamped/welded sheetmetal pans are not truely adequate.