I was able to get just over 104k, though not all of these flights have 3-class service and some of the service is seasonal (ANC). Not like the old days where you could get 115k easily .

cpt-jnb-lun-nbo-sez(pri)-lhr-dxb-lhr-ist-lhr-lax-sxm-dfw-anc-dfw-bos-lax-scl-ccs-scl-bog-scl-jfk-hkg-del-hkg-sin-bom-syd-asp-per-bne-akl-hkg-jnb