Airlad,
I came across this company the other day - they may be exactly the sort of people you want to talk to.
トレンドベクターエビエーション インターナショナル:::TOPページ:::
I can vouch for the fact that they really exist, own at-least 3 aeroplanes, and really are where their website says they are. After that, you're on your own I'm afraid.
Good luck.