With regards to Safair and the aeroplane, you are right.
It is a Safair owned a/c on the EI reg, and is the one that is used for the OSRL flying. Safair is now fully owned by Aergo.
I don't know the details of the crewing situation, but I think they are Irish / UK guys working for ACL, not sure if they are looking for crew or not, but recruitment should happen in small amounts for the ZS- fleet.
The ZS- Herc's are all flying full time, there have been a few changes in the marketing dept. and the business has picked up a lot in the last year or so.
BTW....... Thanks! We love it!