Troy there are plenty of second hand scooters and motorbikes available. Prior to some date, not sure when it was possible to import larger motorbikes. I have seen a few Royal Enfields, Big Hondas and a motor guzzi, but because of age who knows what condition they are in.Also seen a few Honda XL 185 which would make suitable rides and are simple to maintain and fix, even if old. Personally I am trying to track down a hyosung ( from Korea ) as they have reasonable good quality and range of bikes
At moments bikes are limited to 150 cc import, but many bikes coming from India up to 220cc their paperwork is dodgy and expect problems.
Having researched a bit forget the idea of importing, you are wasting your time and money.
Catch you when you get here