Bumblebee
I admire your perseverance.
...but I must agree with above comments, think it through carefully.
You have to think about the "what if-s", and there are many of them.
Mostly, think about your safety and the bystanders while experimenting.
Look at a few helicopter crash video's on youtube and you'll see.
My suggestion is this: go to your local helicopter flying school,
take a few lessons in hovering. Ask the instructor about the things
that can go wrong.
Goodluck,
FTF