Well, I am reporting back on the ice method - didn't work. The ice just cracked and got forced out the ends. I am thinking the radius is just too tight for the metal. However, after reading Sawduster's post, I realised I didn't heat it up enough to red hot, so maybe that's where I failed on that attempt, so I'll have a final crack at that. If it fails, then I will have to resort to a solid rod and shrink wrap the wires to the sides which is not preferable and it also means I won't be able to detach it from the base for transport.