Just a quick comment. I lived in a city in California where some bright guy built his own electric fence to keep his dog away from the swimming pool. No, the dog didn't get hurt, but the guy killed his son.
Don't mess with stuff like this. There is a reason its designed by professionals and tested by safety agencies before consumers can use it.
Please do not lose hope,maybe some second you bave the inspiration.The same to you ,now I have too many questions which can not be resolved.But I think the way of seek answer is a happy way.Hope to make friends with you!