Been thinking of some possible ways this could be done as a business for a while, offering a service to motor clubs to do all the applications for road closures etc however you first have to understand the "politics" that surround clubs and the egos that are involved. Its often the same people who are complaining of the amount of time they give up that are most reluctant to cede control of their events to others. Once spoke with a promoter of a major UK Rally championship and he told me that it was like herding cats trying to get 6 event organisers to agree on a standard format!
There would be a cost involved to clubs obviously and without big sponsors I'm not sure how many would be able to afford to "contract out".
Its clear something has to be done otherwise the proposed saviour of UK rallying, i.e closed roads will be dead in the gate before the tape drops.
Regards the average age of organisers, I've seen event after event talk of combined ages of their teams in high 100's. The fact is the motorclub structure just doesnt appeal to younger people and quite often the atmosphere around rallies is very poe faced and lacks "fun". I know that is because of rules and regs, insurance needs etc however it doesnt help get people engaged.
I guess motorsport of the traditional type in general could be on borrowed time on the island however am still interested to know how other countries go around thier business so we can learn from them.