I'll be heading the same way as you, but probably later. Search HUBB for Burma and Myanmar to find out why I won't be going this way. You can't ride all the way.
Also, shipping from India is not a great idea. Again, do a search with appropriate keywords like bureaucratic or nightmare to get an idea.
As it stands I will most likely follow the well-trodden path of flying from either Kathmandu or Dhaka to BK. Or, if there are enough people going at the same time we could organise a convoy through China to save on "guide" expenses and get to see Tibet and China.