Second Hand Motorbikes Thailand

What is the Toyota Corrolada Motorcycle?

I'm looking to make a motorcycle trip from London to Sydney via Turkey, Iran, Pakistan, India, Thailand, etc. I want a cheap second hand bike (irrelevant Year) you just go and go and has been known for their durability and reliability there Toyota's Corrolada motorcycles. All engine sizes welcome! Any thoughts?

A Vespa scooter. Slow, reliable and fuel efficient.

Sungai Golok, Thailand (Jan2009)