South African Theological Seminary

SATS appears to be affordable at 21,000 Rand per phase at the PhD level. Unless I am missing something, that is about $1200 US a phase with 5 phases lasting 3-5 yrs on average.

https://sats.ac.za/programmes/postgraduate/doctor-of-philosophy-in-theology/

Update: I think that rate was for certain poorer countries. The price calculator says about $2,600 US per phase (ie more about $13,000 for the PhD).

 

And they have a reliable history and have been evaluated as RA equivalent.