Jacko
I understand what you are now getting at. Unfortunately in these days of beancounters (who know the cost of everything....) your assessment of the savings paying for the UAS system is very difficult to prove and even harder to cost!
With regard to the flying TRAINING that will be undertaken on UASs I understand that there will be a structured syllabus, that all instruction will be undertaken by Q qualified pilots, the syllabus will mirror to some extent the NPPL syllabus, the flying will not be assessed (except for fit solo/not fit solo), pilots will continue to follow the current syllabus until the new syllabus is in force and the 30 hours is not capped. For those students who do not want to be pilots their flying can be tailored to meet their needs - if they just want to do the Dams Run everytime they fly then they can, if they want to progress through the syllabus and do the solos then they can - it will be their choice.
Oh and there seems to be no shortage of volunteers at recruiting, even when the new system is explained to them.......so far!