RE: Whobbies Team Pro or Magnum 57 or Manta Ray?
Sounds to me you that you are not sure about things.
You cannot have FAST and 6" chop without spending some bucks here.
The hulls you are looking at are heavy and need some power to get them moving.
Once again, go visit the site I told you above and read around.
It will help you decide what you want do.