Also, for the grime, distilled white vinegar works quite well. The paint might be a PITA to scrape off, but I am sure you got it covered. I'm not sure if acetone is a no no or not for aquarium clean up.
Either way, this is a unique tank for sure! Looking forward to seeing it all fixed up.
not sure if this suits the vision for your scape, but if you need some black river stone, I can hook you up
Man.. I should have asked that before I just sent out the other stuff. *facepalm*