Put the oil tank in the electrolysis bath, I decided to leave the inside alone for now so I blocked off all the passages and let it float while the process works on it. I'll flip it over to the other side and check it over tonight. I put an old brake drum in as the sacrifice this time, seems to be working about double as well as the smaller ones I'd had before.
I had to clean a spot of the drum off to make a good contact so while I had the grinder out I smoothed out the little flanges on the lower engine mounts, for and since I was in a grinding mood I did the same to the cut frame too... I'm not sure what I'll be doing with the cut frame, but I've been prepping it right along with the one I intend to use for the resto.
I also cleaned up the cuts a bit with the grinder, they were jagged and rusty. I'm sure the PO made some hasty sawzall cuts, they look a little better but aren't even left to right. I'll either figure out some way to restore it, or wield in a loop since it's already been cafe-cut.