Am I missing anything else?

Power source, program material, people on programming side and people
on tech side and people on facility maintenance side.

Keeping a transmitter going in third-world conditions isn't rocket
science but depending on the antenna/facilities it usually takes at
least one guy. In really corrosive/jungle-like conditions it'll take
more.

Depending on your desired broadcast range you might be better off with
a (local) broadcast-band or maybe even FM transmitter to reach your
audience.

If you can define your target audience socio/economico/geographically
you can then define the transmitter and program material. Otherwise
you're very likely to set up a station that nobody wants to listen to.