The biggest thing is to find who you'll be selling them to before you get the rabbits. The goat breeder I go to hauls a hundred or two rabbits into Portland every other week. I imagine your hardest job will be finding whom to sell them to on a regular, consistent basis.
You make far more efficient use of your land the smaller your operation. Some of the most profitable farms in the US on a per acre basis are doing it on 2, 3, 5 acres.
I sometimes find exposing customers to the processing of the birds turns them off from the whole experience of farm raised food.
I have some people who want to know which lamb is theirs, others won't even step foot on the farm because they don't want their meat to have a "face".