I need a good plan for a copper, zinc , or silver ion generator that i can use for a chemical free pool

No offense but you're still using chemistry, therefore it's not a chemical free pool.
A salt water pool would be slightly safer.
Yes, this is true, but a LOT Less and that is better.. I just purchased one after researching quite a bit. I think a great combination is the ionizer and maybe a little chlorine. This is the best information I could find. Good Luck