Seems your plans are pretty well firmed up - I think that's great. I will simply add a big thumbs up for Britrail passes. They represent great value and easy transportation around the UK. I can't begin to tell you how much my wife and I appreciate being able to hop on a train and have our passes checked while in transit. In addition, many times our passes have given us a bit of extra TLC along the way.

Carry on...