Southeast Asia forum

I'm a 26 year old from Austin, Tx who is a little sick of the 8-5 cubicle life. I'm planning to get out of here mid-july with hopefully about 15k usd for a 6 month trip. This will be my first time taking a major solo trip so any advice is appreciated. Here is what I'm thinking right now:

Maui, Hawaii- 3 weeks where I will stay with a friend
china- 6 weeks, shanghai, yangshuo, dali
Hanoi and Halong- 2 weeks
Hoi An/ Hue- 1 week
Nha Trang- 1 week
Ho Chi Minh City- 2 weeks
Cambodia Phnom Pehn/Siem Reap- 1 week
Bangkok- 1 week
Vientiane- 1 week
Luang Prabang- 2 weeks
Chiang Mai - 2 weeks
Phuket/Thai Islands- 2 weeks
Ubud/ Kuta- 2 weeks

For the most part I just want to relax and experience as much as possible. I like to have a good time but I'm not too picky, so I figure I should double most of the budget number I see. I've done a fair amount of research so I feel that I have a good idea of where I want to go.

At $50 a day, 1k for travel, 3k for flights, and 2k for miscellaneous(visas, insurance, vaccines, etc.), I figure I should be comfortable for a nice 6 month adventure. With all of the knowledgeable and experienced travellers on this board, does this plan look ok? Do you see anything unreasonable here? Any suggestions or advice that could be helpful?

Thanks,
Keith from Austin