Hey there,
I have 6 years of professional experience as an IT executive.
As per you requirement,
I can get you US number with pay per call plan which can be configured in your phone also via app.
now on email thing,
do you want email address like email@yourbusinessnamedotcom, as this will be not free still i can hook you up with 15 days trial account after that it will be paid.
Let me know so we can discuss and finish your task.