I can't help, but think this is a super important question. In Uganda here battery farmed hens are a way out of poverty for people here, and often promoted/subsidised by NGOs and big international aid. Without an economic solution (whether carrot or stick) I'm not sure how the oncoming flood of battery hen farming in Africa can be stemmed

I don't know the answer for sure, but I think this highlights one of the challenges to expanding the scope of AW efforts. It seems to me that corporate campaigns and the like can achieve their cost-effectiveness results because the bulk of the costs are borne by third parties, and we don't much care about the balance sheets of Big Ag or even consumers in developed countries.

Things get considerably more complex when (1) we expect the bulk of the costs to be borne by people in developing countries, and/or (2) we have to bear those costs ourselves. I think unfortunately the answer to your specific question is that there's little to no funding available for option (2).

Thank you for your willingness to transition! I strongly recommend you reach out to the One Health and Development Initiative. They are working with farmers in Nigeria on this topic. If you don't receive a response from them, please let me know / contact us at Animal Advocacy Africa and we can make an introduction.