Tiny sinks? What rig are you in?? I'm in a Winnebago Adventurer and my side by side sinks are normal sized. They are not the deep gourmet sinks but they hold a regular sized dish pan on one side and I put a shoe box in the other so I can pour liquids down along side it.
Big Freezer... You might want to buy a 2nd freezer and fit it in a pull out below the floor in the bay area. I know some that do that. It's not going to hold 1/2 a cow but should give you two weeks worth of meat.
Dishwasher? I wash the dishes and let them air dry. I have way too many dishes. I only use four cereal bowls and four plates in a day. But you will learn to cook and eat in a smaller area inside. Outside is more fun and you'll be amazed how few pots and pans you use when you grill.