Hope you don't mind an old pilot who's never worked in corporate jets butting in to say how fascinating it is to read all the comments.
Nearest I've done is flying a six seat air taxi and that was all DIY from stopping at 'phone box on way in to get weather and route info to bills (once wrote personal cheque for fuel) to selling duty free en route
I was close to getting into your line of work in 1997 for a well known shopkeeper (who, shortly afterwards, lost his royal warrant) but went to Cathay instead.
From the personal security angle, I'd hope that the pilots would travel to and from the airport with you even when you have to wait to sort out catering/cleaning etc. Don't give 'em food poisoning
