I ommited to check deepbluesky's overall itinerary. Since he is starting from Africa, my suggestion would violate the one inter-continental departure and one inter-continental arrival rule with regard to the continent of Africa.

However, in general terms my suggestion should comply with the rule regarding two arrivals and departures from the continent of Europe:
For example - a xONE4 of NthAm-xEur-Afr-Eur-Asa or NthAm-Eur-Afr-xEur-Asa should allow the routings ???-xMAD-LOS//SSG-MAD-??? and ???-MAD-SSG//LOS-xMAD-??? respectively.

The first has a transit through MAD from outside Europe to Nigeria followed by a 'normal' arrival in Europe from Afirca. The second does it in the reverse order - a 'normal' departure from Europe to Africa, followed by a transit through MAD from Nigeria to outside Europe.

Must admit I've never understood the meaning of or grasped any significance of the word via in the rule "For travel to/from or via Ghana, Nigeria, Kenya, Uganda and Tanzania". The word has always appeared superfluous to me.