I agree with B73
He makes some valid points and piggy-backing is a nice fix in the short-term but not unreasonably we're all very precious about our AOC and who is flying under it. If you’re not known and don’t have that all important rapport with an AOC holder it may prove difficult.
I don’t want to appear cynical and I do wish you well, but your initial post seems slightly amateur and I suspect that as you learn a bit more about public transport ops / helicopter charter within the UK your funds may be better spent elsewhere.
It would be a great achievement if you do pull it off and I wish you well, genuinely.
Keep coming back here to ask more and update us on your progress.
XD