"Permanent" Foundation

We are considering placing our Doublewides on separate lots on a permanent foundation in order to make the homes eligible for bank financing. Can anyone help us with simple specifications? For example: A perimeter and central slab of reinforced concrete 6 inches thick and 24 inches wide and the home to be bolted to the foundation at 10 points.

Thank you,

Bernd Hanak

Did you ever end up putting homes on the permanent foundations?