The Bill & Melinda Gates Foundation financed EPIC--a coordinated set of immunization costing and financing studies in 2012-2014 in six countries (Benin Ghana Uganda Zambia Moldova and Honduras). Vaccine Costing dataset provides relevant data at the facility level, which can probably be understood as the admin2 level given that most facilities serve a larger district with outreach.

Vaccine info: number of children vaccinated (multiple vaccines)

Cost info: A total cost indicator that is also disaggregated into Facility, Labor, and Outreach costs.