Solve the puzzle? Draining converter with Magnum flex plate

Great! Just didn't want you to have extra work on top of the drain plug worries. I wonder if you were to remove the converter to flex plate bolts, then push the converter back into the trans as far as it will go, could you get a wrench on that drain plug? That may not work because of the lip around the edge of the flex plate, but it may be worth a look to see. You can't cut an access slot in the lip to make it work though, because it would screw up the balance. Since the 904 is coming out later, I believe I would just top it off and run it since the pan just had normal wear sludge and no chunks.