Also thinking about building a few tractors to grow out meat birds. They go for 30 bucks a processed bird around here. Hoping we can grow out around 50 every few months and help with the income a bit.
Just a warning, a tractor full of meat birds quickly gets WAY too heavy to move. Build it like a utility trailer with a heavy duty frame and real wheels, and tow with a lawn tractor.
We grow them 25 a batch indoors, in a wire sided tent. Your climate is a little warmer, but up here they tend to get chilled when outdoors as they are not well feathered.
Be sure to keep the lights off at night after 2 1/2 or 3 weeks, when they start eating like hogs.
We process ours at 10 weeks and they are 5 lb to 8 lb dressed, and we get $5.50/lb for them packed in shrink bags, or $5/lb in common poly freezer bags.