Perhaps you could hire a reciprocating saw with a long blade. Cast iron cuts quite easily.
http://www.hss.com/g/3123/Cordless-Reciprocating-Saw.html
The pipe cutter is a good idea but perhaps a little complicated for the uninitiated?
If you go for the grinder option I would recomend a face shield or at least a good pair of safety goggles.
http://www.hss.com/g/3123/Cordless-Reciprocating-Saw.html
The pipe cutter is a good idea but perhaps a little complicated for the uninitiated?
If you go for the grinder option I would recomend a face shield or at least a good pair of safety goggles.