Maybe someone's got some lengths lying around that they don't need? Doing the big three and could use about 20 feet it looks like. . . .

If you've got any, let me know what you'd want for it. I'm in Newmarket, but travel across the GTA.

 

Have you tried any welding supply shops, Princess Auto, or online wleding cable suppliers? They should all sell by the foot.

 

2 gauge? I have some mechman 2 gauge wire for sale. Let me know