The shell is independent of the furniture and integrity will not be affected by removal.
A problem will be to cover over the refrigerator area and properly insulate the area. There is 2 1/2" of fiberglass bat between inner and outer shell elsewhere in the trailer. You may want to pop-rivet aluminum sheet over the fridge area after insulating.
Also, is anything else hidden under there? converter, water heater, etc. that will have to be relocated?
John W. Irwin
2005 Classic 28 "Sabre-Dog III"
2013 Silverado 2500HD Duramax/Allison LTZ
WBCCI #9632, TAC TX-10