On the other hand, in 2010, ice-out occurred April 5, and temperatures by the end of April were 50 degrees. My point is that the fish behavior around opening day depends not just on ice-out dates, but also on weather after ice-out.
You have to make decisions about the type of manufactured home foundation you want installed. A Low Profile type is popular now, but may be much more expensive. Generally, an alternative FHA approved pier foundation costs less. The Contractor will give you a bid on all the costs involved for either type foundation.
The difference between modular and manufactured homes is often in the permanence. For instance modular homes are placed on a permanent foundation; whereas trailers, or manufactured homes are built on a steel chassis with wheels attached.