Stavia, from what I can glean, Vitamin C is the direct antagonist of copper and hence the most powerful chelator. Lots of folks recommend high doses to get copper down. A really conservative starting point seems to be 500 mg. Some sources recommend doses as high as 3 grams.
I know many members here supplement zinc. I think Susan mentioned she was taking 20mg. You know I don't have a medical background, but it seems really reasonable to me for you to do BOTH until you can bring things back in line with diet. Given the severity of your imbalance, you might want to look into Pyroluria
. I keep running across references to it in association with Zinc/Copper imbalances...but I'm a self-professed rookie playing with google
So sorry you are dealing with this, but so HAPPY you know in time. (((Stavia)))