Nobody has succeeded thus far in extracting DNA older than like 45kya I believe. And that was better preserved Siberian, NE Asian DNA. Rumor is the Reich lab will be publishing Mesolithic Indian DNA results in upcoming S Asian paper...prolly oldest from subtropical climate if so
Are there any snow-capped mountains west of the Rwenzori? I imagine that is where you could find equatorial DNA preserved (but maybe not typical of the tropical population)