Here are some questions I just asked another rider who recently road from Hanoi to Saigon...
"I'm in the early stages of planning a similar trip and just posted a thread in the Trip planning forum.
I'm mostly looking for information about road conditions, places to stay, get gas, etc.
It looks like you rode mostly down the coast, which is a route I would prefer.
Can you provide more details on your route?
Was it mostly paved roads?
Did you have difficult sections of dirt and if so could they have been avoided?
Any water crossings?
Tricky wood bridges?
You mention total bribes paid of $500
Was that mostly due to the accident?
Were there other bribes necessary?
Sorry for all the questions
I'd love to here anything you can share