Success!! Found an old guy in a town about 1/2 hr away.
Turns out he is a 74 year old guy and has been welding cast iron for 40+ years!! He preheats to 400 F, grinds out one side of the crack in a V, welds using a high nickel rod, grinds out the other side right down to the weld and welds it up and then finally cools in down slowly over 6-7 hours.