Thanks, guys!
Using plain vinegar. Noticed last night that the fishpan I used to soak it in is now a lot cleaner than it was...LOL It is my girlfriends, from an estate auction, and she was having a hard time cleaning it. Guess I need to finish both jobs and soak it longer.
A local forum member contacted me, will be meeting with him to discuss options in the near future.
I hope everyone has an awesome weekend!