Terry, well done for your efforts, I've sent you a message.
Does anyone on here have any contacts with the Mission Aviation Fellowship (MAF) UK as they operate C182, C206 and C208 aircraft across South Sudan and Kenya. They are a Christian organisation who fly people in need, food, goods and the odd bible in and out of remote strips, this there website:
https://www.maf-uk.org/place/south-sudan
They did an evacuation during the troubles in Juba in 2014, I guess Maurice would meet their criteria if he needs to be flown to a better place, or needs parts, food or fuel flown in.