Oh okay.1. I'm not really sure. Apart from Ibn Battuta account of the Sultan, Abd al Aziz alMakdachaouy (meaning from Mogadishu).
(Which you've already showed I know)
Ibn Battuta's visit to the Maldives was in the 1340s I believe. We would later lose the island to the Portuguese.
Aye... I very much doubt Sofala because it was said to be controlled by the kingdom of Great Zimbabwe(they actually had a lot of influence on the southern coast than we think) who they let merchants/traders from the city of Kilwa use it.2. Sofala is said to have been founded as a gold colony by Somali sailors.
But there's not a lot of other historical documents about it.
Considering we ruled at least two different far off islands, it would have been cool if we had control over some other notable ones, like Zanzibar, Madagascar, Socotra etc.
3.
I doubt Zanzibar too because unlike most Swahili islands it is the most documented and we don't hear people from Somalia settling. I would bet more on northern Madagascar. Not sure of Socotra tho.
I would however bet on Gedi. Because I hear Gedi was a Swahili town that was invaded by Southern Cushytic people(and they changed the name to Gedi). They COULD have ben either Oromos or Somalis.