If you do not have a motorcycle licence from your country go to a driving school like Mityon. The course can be done in 6 days and they do all the testing. Just take the paperwork to Land and Transfer office. Course is not expensive
You should find a Visa Agent and they will look after everything for you. It is more expensive than doing it yourself but everything is looked after. It will cost you up to 30,000 THB. Following years do it yourself.
Robert you are absolutely wrong. My wife and I are both European and we both have Retirement O Visas. We are not required to have medical insurance. The only requirement is the 800,000 THB in each one of our bank accounts