I do not want to dampen your enthusiasm phnompenhkid but I suggest you do not make any long term decisions just yet.
I suggest you talk to the Aust Consulate Office in Phnom Penh before you even think of buying a house in Cambodia, a purchase could end up being either the best or worst investment decision in your life.
How sure are you Meekong will survive or even grow to the size you suggest. Their record is not very encouraging. They tend to exaggerate to say the least.
Did your first aircraft arrive on time as planned and when is the second one due.