The "dry-composting" toilets aren't all that bad really. When properly maintained and operated correctly, they don't stink and produce a sterile fertilizer.
They're in use in many parks and other facilities about here.
I'd be good with a 3KVA generator - given I have no real need for building heating and hot water for washing can be derived from other sources fairly easily and cheaply. AC is for the weak - and besides if you're running a farm you're gonna be outside most the time workin' yer ass out so you won't need it.
The only consideration there is irrigation and fire pumping - and you can get something suitable for a 7 acre lot that runs on gas or diesel.
There are a multitude of 12v "camping" fridge and fridge freezer combos available that suck a good deal less than 1000 watts - If you don't have a large family they're fine. Obviously you're not going to stuff a whole beast in one so if you plan to do that you'll need something a bit larger, or grow a smaller type of beast, or be in a position to trade with your neighbor for other things.