Possibly take a look at the Open Range lineup--friends of ours have a 2500 GMC and pull a 34RLTS with washer/dryer combo. It stood up very well to our AK trip in 2011. They are only slightly overweight on the truck rear axle.
Don't know about the electric (you mean residential, don't you) fridge--they offer one, but maybe not in the size you are thinking about.
2016 Tiffin 40 QBH
2015 38RSSA, traded
2005 TK3 #1869, 10 yrs of memories,
2017 F450 KR--one more Ford is it
2009 F450 4x4-died; 2010 F450-retired