Hawkesy,
Are you starting to build up a picture here. I started my own helicopter op 3 years ago and without doubt, it has been a tough 3 years.
There are, however, great rewards.
I don't know what your background is or where your expertise lies, therefore, it is not possible to advise you either way. If you just want to be a businessman/business owner, have a real good look around at what your windfall can buy and the potential return.
My own helicopter operation is for sale. It would not suit your needs as it is in Florida, however, if you pm me I can tell you what you should expect to get for what amount of money. If you decide to follow your desire anyway, again, pm me with specific questions and I will help as best I can.