You lazy bastid, replace it with a new one.
We did the exact same thing on a Mach 1 we were working on. I had the owner jack it up but he knew nothing about cars. Jacked it up by the oil pan and dented it bad. We did almost the exact thing you did with a block of wood and welded on a bar. Worked great.
That pan is hammered though. Damn. Can these be swapped out with the engine in place?