Ouch... it doesn't look too bad and I think its not a easy fix but doable, not sure about fixing before the dinner party though. 
 
And there is also a ton of upside, tank fail > RoDi fail; I rather deal with freshwater over saltwater on the floors... 
 
Good luck with the cleanup, it looks like part of the CUC is ready to help. 
		
	
		
		
		
		
			
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