Consider spacesaving vertical gardening. Hog panels curved into an arch or an upside down V are sturdy and self-supporting.

Rabbits are a source of meat and are quiet.

Consider a greenhouse. The book Solviva by Anna Edy is in the library systems. Check out how she combined a greenhouse with chickens, rabbits, and barrels of water (solar collectors). I think chickens and rabbits give off something like 1000 BTUs of body heat per animal per day.

And if anyone ever wondered, no, you can't decrow roosters.

All the pygmy goats I've known were mean little suckers. And the mean ones live forever, so be sure to eat them first.

Sue