>> The two highest sections of the tower - starting at between 17,000 and 20,000 metres above earth - are reserved for a reliquary section (which would house religious relics) and a funerary section. The tallest point of the tower above earth is planned for about 32,000 metres above ground. <<
15,000 of vertical space for a reliquary?
are reserved for a reliquary section and a funerary section.
You know: for all the Iron Workers who died hanging the thing.