Interesting. I was just reading up on a "Britain beats the American Rebellion" that Winston Churchill apparently wrote. Suggested the diehards would flee west and set up pseudo-Boer Republics. Even if he wasn't involved an interesting idea.
Keep it up!
That sounds awesome. And a note to the author, posts can never be to long. Throw in some pictures and even out the spread, and you got a solid base. Your timeline is looking good, even if it makes me cringe slightly.
EDIT: Just saw the last post and I highly doubt the British would consider Manumission given the profits generated by the slave labor in the Southern Colonies.