2009 BLOOMER EVOLUTION Structurebody Problems

PLEASE NOTE THAT ON THE VEHICLE MAKE IT IS A 2008 ROADMASTER PREDATOR, (AS A ROADMASTER IS NOT ON THE LIST TO CHOOSE FROM), 24 FOOT TOY HAULER AND THE FLOOR IS FALLING OUT OF IT. THE FLOOR 8' IN FRONT OF THE REAR DROP DOWN DOOR HAS SUNK 6 INCHES OR MORE AND IS SO SOFT THAT IF PRESSURE IS APPLIED WOULD MAKE A HOLE ALL THE WAY THROUGH TO THE GROUND. IN TERMS OF ATTEMPTING TO HAVE IT FIXED, THE SELLER HAS BEEN CONTACTED AND WILL NOT RETURN ANY CALLS, AS FOR ROADMASTER, THEY HAVE GONE OUT OF BUSINESS. THIS TOY HAULER WAS PURCHASED IN MAY 2009 AND THEY FLOOR STARTED SINKING WITHIN ONE MONTH. FOR A TEMPORARY FIX A 7'X8'X 1/4" PIECE OF DIAMOND PLATE HAS BEEN PLACED OVER THE SOFTEST AREA. ALSO, THE WATER TANK IS RESTING ON THE REAR AXEL OF THE TRAILER. GIVEN ENOUGH...