Our c-class has a network of steel joists/beams etc. just below the floor, it is visible from the basement storage compartments. Brackets could be fabricated to join to the steel structure.
Another concern, Is there any components, tanks, water pump etc, in the the space under the dinette seats that would have to be relocated or could not be relocated.
Beverley and Ken
2006 Winnebago Outlook 29B E-450.
2012 Honda CR-V AWD
Blue Ox Aventa LX tow bar and Brake Buddy Vantage.